A Hundred Years of One Flower

Overview

Story

Rerun

The following article is a WIP and everything written may not be accurate yet so please take this with a grain of salt.
Please check with our fan Discord or Reddit groups for more information.V • T • E

A Hundred Years of One Flower - Let's Get Real with a Water Battle
Event Name
English	A Hundred Years of One Flower - Let's Get Real with a Water Battle
Kanji	百ヨリ出ズル一輪ノ 〜いざ尋常に、水上勝負〜
Event Duration
Event Period	June 25th, 2025 ~ July 09th, 2025
Rewards Period	June 25th, 2025 ~ July 16th, 2025
Event Information
Event ID (Unofficial)	46
Requirement	Clear Mission 2 Act 3
Event Currency(s)	Wooden Doll - YukariCategory:test⁠Wooden Doll - NagusaCategory:test⁠Wooden Doll - KikyouCategory:test⁠Wooden Doll - NagusaCategory:test⁠
Event Booster(s)	Yukari Swimsuit Icon⁠Kikyou Swimsuit Icon⁠Renge Swimsuit Icon⁠Yukari Icon⁠Renge Icon⁠Kikyou Icon⁠Nagusa Icon⁠Wakamo Swimsuit Icon⁠Izuna Swimsuit Icon⁠Chise Swimsuit Icon⁠Mimori Swimsuit Icon⁠Shizuko Swimsuit Icon⁠Niya Icon⁠Kaho Icon⁠Chise Icon⁠Shizuko Icon⁠Pina Icon⁠Umika Icon⁠Tsubaki Icon⁠Mimori Icon⁠Kaede Icon⁠Michiru Icon⁠Tsukuyo Icon⁠Izuna Icon⁠Wakamo Icon⁠
Event Music	Summer Survival!
Navigation
← Previous	Highlander Railroad Explosion Incident★NEW★ -ive aLIVE!★RERUN★
Next →	The Promise of The Summer Sky★NEW★

A Hundred Years of One Flower - Let's Get Real with a Water Battle (百ヨリ出ズル一輪ノ 〜いざ尋常に、水上勝負〜, A Hundred Years of One Flower - Let's Get Real with a Water Battle) or A Flower Blooms Among the Hundred: Fair and Square Aquatic Showdown on Global, is the 46th event in Blue Archive featuring the members of the Hyakkaryouran Conflict Resolution Council.

Blurb

• Yukari
• Renge
• Kikyou

Yukari Swimsuit PortraitCategory:test⁠

• 1
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• 7
• 8

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Visiting, Event Ending

9 =

“		”
	~ to Sensei, Visiting, Event Ended

Renge Swimsuit PortraitCategory:test⁠

• 1
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• 6
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• 8

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Visiting

“		”
	~ Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Visiting, Event Ending

“		”
	~ to Sensei, Visiting, Event Ending

9 =

“		”
	~ to Sensei, Visiting, Event Ended

Kikyou Swimsuit PortraitCategory:test⁠

• 1
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• 5
• 6
• 7
• 8

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Visiting

“		”
	~ Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Visiting, Event Ending

“		”
	~ to Sensei, Visiting, Event Ending

9 =

“		”
	~ to Sensei, Visiting, Event Ended

Event Details

Information

• Event Period: June 25th, 2025 JST ~ July 09th, 2025 JST
• Rewards Period: June 25th, 2025 JST ~ July 16th, 2025 JST
• Challenge Stage: June 26th, 2025 JST
• In this Event:
  • Item Search has been added.

Currency Boost

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+30%

+15%

+15%

+15%

---

+30%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

---

+20%

+20%

+15%

+15%

+15%

+15%

+15%

+15%

+15%

+10%

+10%

+10%

+10%

+10%

+10%

+10%

+10%

+10%

+10%

+20%

+15%

+15%

+10%

Event Guide

• Stages are likely required to be cleared twice. If teachers don't have the upgraded event students; It's easier to clear the stage twice: to get the 3★, bonus student drops, and thus the maximum reward.
• Once an area has been perfectly cleared, at 3★. The stage reward given is always the highest recorded drop, including the bonus from the students.
  • Using the "Skip or Rush" function will record the highest drop.
• In this event, teachers can farm a lot of items:
  • Materials (Ooparts)
    There are 4 types of materials that teachers are able to obtain and each can be obtained from tier 1 to tier 4. There is no event bonus for these materials.
    • KikukoKikuko 3Category:test⁠ ~ Quest 1 (T1/2) / Quest 5 (T2/3) / Quest 9 (T2/3/4)
    • RohoncRohonc 3Category:test⁠ ~ Quest 2 (T1/2) / Quest 6 (T2/3) / Quest 10 (T2/3/4)
    • Crystal HaniwaCrystal Haniwa 3Category:test⁠ ~ Quest 3 (T1/2) / Quest 7 (T2/3) / Quest 11 (T2/3/4)
    • NebraNebra 3Category:test⁠ ~ Quest 4 (T1/2) / Quest 8 (T2/3) / Quest 12 (T2/3/4)
  • Event Currency
    Generally, event currencies dropped on all quests with the higher difficulty giving out more and can be doubled should teachers bring along students with event bonuses.
    • Wooden Doll - NagusaWooden Doll - NagusaCategory:test⁠ ~ Quest 10
    • Wooden Doll - KikyouWooden Doll - KikyouCategory:test⁠ ~ Quest 11
    • Wooden Doll - YukariWooden Doll - YukariCategory:test⁠ ~ Quest 12

Stage Detail

• Story
• Quest
• Challenge
• EX

Story Stages
No.	AP	Lv	Terrain	ATK	DEF	Initial Reward	Reward (No Bonus)	3★
01	x10	No Battle				x275 x15	x5	x15
02		11	Desert IconCategory:test⁠			x275 x15
03		No Battle				x275 x15
04						x275 x15
05						x275 x15
06						x275 x15
07						x275 x15
08						x275 x15
09						x275 x15
10		16	Desert IconCategory:test⁠			x275 x15
09		No Battle				x275 x15
10						x275 x15

Quest Stages
No.	AP	Lv	Terrain	ATK	DEF	Initial Reward	Reward (No Bonus)	3★
01	x10	23	Desert IconCategory:test⁠			x800 x50 x50	x8 x5 x5 x1 25% x1 15%	x30
02						x200 x100	x5 x8 x5 x1 25% x1 15%
03						x100 x200	x5 x5 x8 x1 25% x1 15%
04						x1200	x12 x3 x3 x1 25% x1 15%
05	x15	45				x800 x100 x100	x15 x6 x6 x1 25% x1 8%
06						x250 x150	x6 x15 x6 x1 25% x1 8%
07						x150 x250	x6 x6 x15 x1 25% x1 8%
08						x1600	x23 x2 x2 x1 25% x1 8%
09	x20	80				x1200 x100 x100	x28 x4 x4 x1 25% x1 12% x1 2.1%
10						x200 x450	x4 x32 x1 25% x1 12% x1 2.1%
11						x200 x450	x4 x32 x1 25% x1 12% x1 2.1%
12						x2000	x36 x1 25% x1 12% x1 2.1%

Challenge Stages
No.	AP	Lv	Terrain	ATK	DEF	Initial Reward	3★	Seconds	Guide
01	x5	50	Desert IconCategory:test⁠			x50	x50	120	[ ブルアカ攻略]
02		85	Indoor IconCategory:test⁠					100	[ ブルアカ攻略]
03		100	Desert IconCategory:test⁠					150	[ ブルアカ攻略]

EX Challenge Stages
No.	AP	Lv	Terrain	ATK	DEF	Initial Reward	3★	Guide
EX	x5	90	Desert IconCategory:test⁠			x5	x5	[ ブルアカ攻略]

Type Compatibility
DEF/ATK	Normal	Explosion	Penetration	Mystic	Sonic
Normal	Normal	Normal	Normal	Normal	Normal
Light	Normal	Weak	Resist	Normal	Normal
Heavy	Normal	Normal	Weak	Resist	Resist
Special	Normal	Resist	Normal	Weak	Effective
Elastic	Normal	Resist	Normal	Normal	Weak
Damage
Effect			Damage Dealt
Weak			2x (200%)
Effective			1.5x (150%)
Normal			1x (100%)
Resist			0.5 (50%)

Achievement

File:Event 46 - Guide 3.pngEvent 46 - Guide 3Category:test⁠

Kikyou Swimsuit PortraitCategory:test⁠

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• 8

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Mission Complete

“		”
	~ to Sensei, Mission Complete

“		”
	~ to Sensei, Event Ended

Achievements
No.	Requirement	Count	Reward	Rush?	Tips
01	Clear all Story, Quest, and Challenge stages	24	x1 A Hundred Years of One Flower	No	Clear all stages
02	Clear all Story stages	08	x400K		Clear all Story stages
03	Filp over 30 Treasure Hunt Squares	30	x200K		Play Minigame
04	Filp over 60 Treasure Hunt Squares	60
05	Filp over 95 Treasure Hunt Squares	95
06	Filp over 124 Treasure Hunt Squares	124
07	Filp over 155 Treasure Hunt Squares	155
08	Filp over 186 Treasure Hunt Squares	150	x600K
09	Obtain 11 Treasure	11	x200K
10	Obtain 19 Treasure	19
11	Obtain 28 Treasure	28
12	Obtain 39 Treasure	29
13	Obtain 46 Treasure	46
14	Obtain 55 Treasure	55	x600K
15	Refresh the Treasure Hunt 1 time	1	x200K
16	Refresh the Treasure Hunt 2 times	2
17	Refresh the Treasure Hunt 3 times	3
18	Refresh the Treasure Hunt 4 times	4
19	Refresh the Treasure Hunt 5 times	5
20	Refresh the Treasure Hunt 6 times	6	x600K
21	Clear Quest 1 of the event within 75 seconds	75	x200K		N/A
22	Clear Quest 2 of the event within 75 seconds
23	Clear Quest 3 of the event within 75 seconds
24	Clear Quest 4 of the event within 75 seconds
25	Clear Quest 5 of the event within 75 seconds
26	Clear Quest 6 of the event within 75 seconds
27	Clear Quest 7 of the event within 75 seconds
28	Clear Quest 8 of the event within 75 seconds
29	Clear Quest 9 of the event within 75 seconds
30	Clear Quest 10 of the event within 75 seconds
31	Clear Quest 11 of the event within 75 seconds
32	Clear Quest 12 of the event within 75 seconds
33	Clear Challenge 1 of the event within 120 seconds	120	x800K		[ Guide] by ブルアカ攻略
34	Clear Challenge 2 of the event within 100 seconds	100			[ Guide] by ブルアカ攻略
35	Clear Challenge 3 of the event within 100 seconds	100			[ Guide] by ブルアカ攻略
36	Clear 14 or more of the event missions	14	x1		Any 14 missions

Item Search

File:Event 46 - Guide 6.pngEvent 46 - Guide 6Category:test⁠

Renge Swimsuit PortraitCategory:test⁠

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• 6
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• 8
• 9

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Exchanging

“		”
	~ to Sensei, Exchanging

“		”
	~ to Sensei, Exchanging

“		”
	~ to Sensei, Visiting, Event Ended

Item Search
Item	Reward
Lap 1 & 4
3x2	x1 x1 x5 x10 x1 x1
3x1	x3 x1 x7 x12 x20 x1 x7 x20 x40 x1 x2 x2 x3 x7
2x1	x6 x1 x2 x4 x1 x5 x1 x10 x1 x1 x1 x1 x1 x3 x5
Lap 2 & 5
4x2	x2 x1 x10 x20 x2 x5 x10 x40 x3 x1 x3 x2 x20
1x4	x4 x6 x5 x20 x1 x5 x5 x1 x1 x2 x3 x3 x11
3x1	x4 x1 x2 x3 x1 x4 x20 x1 x1 x2 x5 x5
Lap 3 & 6
3x3	x7 x2 x8 x30 x30 x2 x8 x4 x20 x2 x4 x1 x4
2x2	x4 x7 x10 x20 x1 x4 x9 x1 x2 x2 x1 x1 x2
2x1	x6 x1 x4 x10 x1 x4 x1 x1 x1 x2 x3
Lap 7+
4x2	x3 x5 x10 x20
3x1	x3 x5 x10 x2 x5
2x1	x1 x2 x3 x2

Shop

Exchange Shop

File:Event 46 - Guide 5.pngEvent 46 - Guide 5Category:test⁠

Yukari Swimsuit PortraitCategory:test⁠

• 1
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• 6
• 7
• 8

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Visiting

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Tapping

“		”
	~ to Sensei, Exchanging

“		”
	~ to Sensei, Exchanging

“		”
	~ to Sensei, Exchanging

“		”
	~ to Sensei, Visiting, Event Ended

• Doll (Nagusa)
• Doll (Kikyou)
• Doll (Renge)

Wooden Doll - NagusaWooden Doll - NagusaCategory:test⁠
Total Price ~ 12,945
x3	x1	x1	x1
90 Times	95 Times	30 Times	12 Times
Wooden Doll - NagusaCategory:test⁠ 1	Wooden Doll - NagusaCategory:test⁠ 3	Wooden Doll - NagusaCategory:test⁠ 12	Wooden Doll - NagusaCategory:test⁠ 60
x1	x1	x1	x1
30 Times	18 Times	12 Times	2 Times
Wooden Doll - NagusaCategory:test⁠ 10	Wooden Doll - NagusaCategory:test⁠ 30	Wooden Doll - NagusaCategory:test⁠ 100	Wooden Doll - NagusaCategory:test⁠ 300
x1	x1	x1	x1
60 Times	30 Times	12 Times	6 Times
Wooden Doll - NagusaCategory:test⁠ 5	Wooden Doll - NagusaCategory:test⁠ 15	Wooden Doll - NagusaCategory:test⁠ 50	Wooden Doll - NagusaCategory:test⁠ 200
x1	x1	x1	x1
10 Times	10 Times	1 Time	1 Time
Wooden Doll - NagusaCategory:test⁠ 200	Wooden Doll - NagusaCategory:test⁠ 200	Wooden Doll - NagusaCategory:test⁠ 300	Wooden Doll - NagusaCategory:test⁠ 2000
x1
N/A
Wooden Doll - NagusaCategory:test⁠ 5

Wooden Doll - KikyouWooden Doll - KikyouCategory:test⁠
Total Price ~ 15,650
x1	x1	x1	x1
180 Times	95 Times	30 Times	12 Times
Wooden Doll - KikyouCategory:test⁠ 1	Wooden Doll - KikyouCategory:test⁠ 4	Wooden Doll - KikyouCategory:test⁠ 15	Wooden Doll - KikyouCategory:test⁠ 60
x1	x1	x1	x1
50 Times	38 Times	25 Times	15 Times
Wooden Doll - KikyouCategory:test⁠ 5	Wooden Doll - KikyouCategory:test⁠ 15	Wooden Doll - KikyouCategory:test⁠ 50	Wooden Doll - KikyouCategory:test⁠ 200
x1	x1	x1	x1
60 Times	30 Times	12 Times	6 Times
Wooden Doll - KikyouCategory:test⁠ 5	Wooden Doll - KikyouCategory:test⁠ 15	Wooden Doll - KikyouCategory:test⁠ 50	Wooden Doll - KikyouCategory:test⁠ 200
x1	x1	x1	x1
10 Times	10 Times	1 Time	1 Time
Wooden Doll - KikyouCategory:test⁠ 200	Wooden Doll - KikyouCategory:test⁠ 200	Wooden Doll - KikyouCategory:test⁠ 300	Wooden Doll - KikyouCategory:test⁠ 2000
x5000
N/A
Wooden Doll - KikyouCategory:test⁠ 5

Wooden Doll - RengeWooden Doll - RengeCategory:test⁠
Total Price ~ 200
x1200	x1	x5	x1
1 Time	40 Times	20 Times	1 Time
Wooden Doll - KikyouCategory:test⁠ 40	Wooden Doll - KikyouCategory:test⁠ 1	Wooden Doll - KikyouCategory:test⁠ 2	Wooden Doll - KikyouCategory:test⁠ 20
x5	x5	x1	x1
2 Times	2 Times	1 Time	1 Time
Wooden Doll - KikyouCategory:test⁠ 2	Wooden Doll - KikyouCategory:test⁠ 2	Wooden Doll - KikyouCategory:test⁠ 2	Wooden Doll - KikyouCategory:test⁠ 5
x500K	x200K	x50K	x5000
5 Times	5 Times	5 Times	N/A
Wooden Doll - KikyouCategory:test⁠ 5	Wooden Doll - KikyouCategory:test⁠ 3	Wooden Doll - KikyouCategory:test⁠ 1	Wooden Doll - KikyouCategory:test⁠ 1

Trivia

• Strangely enough, Niya doesn't contribute to the Currency Boost, even though she was introduced prior to this event and her other clubmates from the Yin-Yang Club do increase the bonus rewards obtained after clearing the stages.

Navigation

V • T • E Events
Event 01 - Title⁠Event 02 - Title⁠Event 03 - Title⁠Event 04 - Title⁠Event 05 - Title⁠Event 06 - Title⁠Event 07 - Title⁠Event 08 - Title⁠Event 09 - Title⁠Event 10 - Title⁠Event 11 - Title⁠Event 12 - Title⁠Event 13 - Title⁠Event 14 - Title⁠Event 15 - Title⁠Event 16 - Title⁠Event 17 - Title⁠Event 18 - Title⁠Event 19 - Title⁠Event 20 - Title⁠Event 21 - Title⁠Event 22 - Title⁠Event 23 - Title⁠Event 24 - Title⁠Event 25 - Title⁠Event 26 - Title⁠Event 27 - Title⁠Event 28 - Title⁠Event 29 - Title⁠Event 30 - Title⁠Event 31 - Title⁠Event 32 - Title⁠Event 33 - Title⁠Event 34 - Title⁠Event 35 - Title⁠Event 36 - Title⁠Event 37 - Title⁠Event 38 - Title⁠Event 39 - Title⁠Event 40 - Title⁠Event 41 - Title⁠Event 42 - Title⁠Event 43 - Title⁠Event 44 - Title⁠Event 45 - Title⁠Event 46 - Title⁠Event 47 - Title⁠Event 48 - Title⁠Event 49 - Title⁠Event 50 - Title⁠Event 51 - Title⁠
Special Operation	Mini Event
Spec Ops 01 - Title⁠Mini Event 02 - Title⁠	Mini Event 01 - Title⁠Mini Event 02 - Title⁠
Union Operation	Union Operation (Rerun)
Event 13 - Title⁠Event 20 - Title⁠Event 22 - Title⁠	Event 13 - Title⁠
Conquest Battle	Conquest Battle (Rerun)
Event 14 - Title⁠Event 21 - Title⁠	Event 14 - Title⁠
Rerun
Event 01 - Title⁠Event 02 - Title⁠Event 03 - Title⁠Event 04 - Title⁠Event 05 - Title⁠Event 06 - Title⁠Event 08 - Title⁠Event 10 - Title⁠Event 11 - Title⁠Event 09 - Title⁠Event 12 - Title⁠Event 15 - Title⁠Event 13 - Title⁠Event 14 - Title⁠Event 16 - Title⁠Event 17 - Title⁠Event 18 - Title⁠Event 19 - Title⁠Event 25 - Title⁠Event 24 - Title⁠Event 26 - Title⁠Event 28 - Title⁠Event 32 - Title⁠Event 29 - Title⁠Event 31 - Title⁠Event 33 - Title⁠Event 34 - Title⁠Event 35 - Title⁠Event 36 - Title⁠Event 37 - Title⁠