Imagination Overdrive

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Event Story Gallery

Event duration: 08:00 UTC, October 15, 202517:00 JST, October 15, 2025 - 07:59 UTC, October 22, 202516:59 JST, October 22, 2025
Displayed time is based on your local machine's clock.

Imagination Overdrive is a story event.

This event is part of Lunalu event series. Listed in order of premiere:

Relive the historical epic of
Popol Saga – New Revised Edition –
Coming to a bookstore near you!

Volume One begins with the Castile Empire as
the backdrop. The despot Polo is father to two children.
His first son, Lopop, was birthed by
his lawfully wedded wife of noble standing,
while his second son, Popol, was birthed by
his concubine of commoner upbringing.
The cruel wheel of fate begins to turn in a struggle
between the rich and the poor...

Preorder now to get a limited-edition postcard!
Write us your impressions of Popol Saga on
the postcard for a chance to win a special prize!

For new players

Notable Rewards

New Character

This event has no recruitable character.

Simplified drop table

Difficulty Type Medallion Item Weapon Quartz Grain Urn
Very Hard Solo 3-8 1-4 - -
Extreme Solo 3-15 1-7 - -
Maniac Solo 29-47 5-18
Nightmare Solo 12-18 3-4
Very Hard Raid 0-10 0-5 -
Extreme Raid 0-8 0-6 -

Event Battles

Story Battles

Occurrences Notes
Ch. 3, Ep. 4
Ch. 6, Ep. 4

Solo Battles

Lvl 30 Evil-Eyed Fencer
Cost to Host: 20 AP Unlock: Complete the event story
Wave Name Lvl HP Charge Mode
Wave 1 Spikey 20 190,000 ◇ No
White Rabbit 20 250,000 ◇◇ No
Militant 'Munk 20 220,000 ◇◇ No
Boss Evil-Eyed Fencer 30 550,000 ◇◇ Yes
Special Attacks Triggers and Notes
  • Shadow Pointilism TR 50%
Targets: Random allies
Deals: Light DMG (13-hit / 40%)
  • Last Deadline TR 25%
Targets: All allies
Deals: Light DMG (300%)
Effect: Mirror Imaged (Self)
  • 50% Trigger
Casts Shadow Pointilism.
  • 25% Trigger
Casts Last Deadline.
N - Normal, OD - Overdrive, TR - Trigger
Rewards
First clear: Crystal ×50
Every clear: Honor ×20,000
Wooden Silver Gold

Lvl 50 Nefarious Emperor Polo
Cost to Host: 30 AP Unlock: Clear Very Hard (Solo)
Wave Name Lvl HP Charge Mode
Wave 1 Castile Sentry 30 1,000,000 ◇◇ No
Castile Imperial Guard 30 1,400,000 ◇◇ No
Wave 2 Nefarious Emperor Polo 50 3,650,000 ◇◇ Yes
Special Attacks Triggers and Notes
  • Absolute Emperor TR 50%
Effect: ATK Boosted / DEF Boosted / Bonus Light DMG (Self)
  • Finale: Dynastic Burial TR 25%
Targets: Random allies
Deals: Light DMG (10-hit / 50%)
Effect: ATK Lowered / DEF Lowered / Collapsed (All allies)
  • 50% Trigger
Casts Absolute Emperor.
  • 25% Trigger
Casts Finale: Dynastic Burial.
N - Normal, OD - Overdrive, TR - Trigger
Rewards
First clear: Crystal ×50
Every clear: Honor ×75,000
Wooden Silver Gold

Tales of Reverie
Cost to Host: 50 AP, 2/day Unlock: Clear Extreme (Solo)
Wave Name Lvl HP Charge Mode
Wave 1 Castile Sentry 50 2,250,000 ◇◇ No
Castile Imperial Guard 50 2,800,000 ◇◇ No
Wave 2 Evil-Eyed Fencer 50 6,200,000 ◇◇ Yes
Special Attacks Triggers and Notes
  • Shadow Pointilism TR 50%
Targets: Random allies
Deals: Light DMG (13-hit / 40%)
  • Last Deadline TR 25%
Targets: All allies
Deals: Light DMG (300%)
Effect: Mirror Imaged (Self)
  • 50% Trigger
Casts Shadow Pointilism.
  • 25% Trigger
Casts Last Deadline.
Boss Nefarious Emperor Polo 75 21,000,000 ◇◇ Yes
Special Attacks Triggers and Notes
  • Emperor's Shock Wave TR 75%
Targets: All allies
Deals: Light DMG (350%)
Effect: DEF Lowered (All allies)
  • Absolute Emperor TR 50%
Effect: ATK Boosted / DEF Boosted / Bonus Light DMG (Self)
  • Finale: Dynastic Burial TR 25%
Targets: Random allies
Deals: Light DMG (10-hit / 50%)
Effect: ATK Lowered / DEF Lowered / Collapsed (All allies)
  • 75% Trigger
Casts Emperor's Shock Wave.
  • 50% Trigger
Casts Absolute Emperor.
  • 25% Trigger
Casts Finale: Dynastic Burial.
N - Normal, OD - Overdrive, TR - Trigger
Rewards
First clear: Crystal ×50, Romantic Storybook StapleRewards
Crystal ×50
Every clear: Honor ×150,000
Wooden Silver Gold

Evil-Eyed Fencer
Cost to Host: 0 AP Unlock: May appear after hosting Very Hard (Solo or Raid), Extreme (Solo or Raid). Always appears after completing Maniac.
Wave Name Lvl HP Charge Mode
Boss Evil-Eyed Fencer 70 15,200,000 ◇◇ Yes
Special Attacks Triggers and Notes
  • Shadow Pointilism TR 50%
Targets: Random allies
Deals: Light DMG (13-hit / 40%)
  • Last Deadline TR 25%
Targets: All allies
Deals: Light DMG (300%)
Effect: Mirror Imaged (Self)
  • 50% Trigger
Casts Shadow Pointilism.
  • 25% Trigger
Casts Last Deadline.
N - Normal, OD - Overdrive, TR - Trigger
Rewards
First clear: Blue Sky Crystal, Imagination Gone WildRewards
Crystal ×50
Every clear: Honor ×25,000
Wooden Silver Gold

Raid Battles

The Dark Spirit Has Invaded!
Cost to Host: 20 AP Cost to Join: 1 EP Unlock: Complete the event story
Participants: 30 Vice: 2nd-3rd Elixirs: Unlimited Strike Time: YesStrike Time bonus applies for this raid.
Phase Name Lvl HP Charge Mode
Boss Evil-Eyed Fencer 30 6,200,000 ◇◇ Yes
Special Attacks Triggers and Notes
  • Shadow Pointilism TR 50%
Targets: Random allies
Deals: Light DMG (13-hit / 40%)
  • Last Deadline TR 25%
Targets: All allies
Deals: Light DMG (300%)
Effect: Mirror Imaged (Self)
  • 50% Trigger
Casts Shadow Pointilism.
  • 25% Trigger
Casts Last Deadline.
N - Normal, OD - Overdrive, TR - Trigger
Rewards
First clear: Crystal ×50
Host: Renown Pendant ×12 Join: Renown Pendant ×6
Wooden Silver Gold Red

Lay Low the Tale's Mastermind!
Cost to Host: 30 AP Cost to Join: 2 EP Unlock: Host and clear Very Hard (Raid)
Participants: 30 Vice: 2nd-3rd Elixirs: Unlimited Strike Time: YesStrike Time bonus applies for this raid.
Phase Name Lvl HP Charge Mode
Boss Nefarious Emperor Polo 50 11,200,000 ◇◇ Yes
Special Attacks Triggers and Notes
  • Absolute Emperor TR 50%
Effect: ATK Boosted / DEF Boosted / Bonus Light DMG (Self)
  • Finale: Dynastic Burial TR 25%
Targets: Random allies
Deals: Light DMG (10-hit / 50%)
Effect: ATK Lowered / DEF Lowered / Collapsed (All allies)
  • 50% Trigger
Casts Absolute Emperor.
  • 25% Trigger
Casts Finale: Dynastic Burial.
N - Normal, OD - Overdrive, TR - Trigger
Rewards
First clear: Crystal ×50
Host: Renown Pendant ×25 Join: Renown Pendant ×10
Wooden Silver Gold Red

Challenge Battles

This event has no challenge battles.

Daily Mission

Clear the mission each day to get loot! A new daily mission begins every day at 5 a.m. (JST). Mission rewards include Crystal ×100. Blue Sky Crystal ×1 is a reward on the last day of the event.

Event Rewards

Event Shop

Inventory
Item Step Limit Notes

Light Quartz ×20		1 45015

Autograph Art Sketchbook		1 45015

Arcapoint ×1,000		1 10154Recommended.
2 10206
3 102510

Coronation Ring		1 320-Recommended.

Lineage Ring		1 35015Recommended.

Intricacy Ring		1 112040Recommended.

Sunbeam Earrings		1 112040Recommended.

Damascus Crystal		1 35015Recommended.

Premium Draw Ticket		1 15015Recommended.
2 210030

CtK4Life Merch Sample		1 430-

Half Elixir ×2		1 7510-Recommended.

Soul Berry ×2		1 1004-Recommended.

Light Urn		1 35015

Wispy Spirits Set		1 112040

Co-op Treasure Set		1 310030

Elemental Crystal Variety Set		1 59015

Hellfire Fragment		1 515-

Typhoon Fragment		1 515-

Fire Halo		1 25015

Wind Halo		1 25015

Fire Pinion		1 2205

Wind Pinion		1 2205

Steel Brick		1 15015Recommended.

CP ×10		1 4010-Not recommended, trading using SkyLeap Points is much more time- and AP-efficient.

Champion Merit		1 3205
2 64010

Supreme Merit		1 33010
2 36020

Skill Jewel		1 55010

Trophies

  English Title Japanese Title Step Description Reward Notes
A Stretch of Your Imagination あなたの空想はあなたのモノ ★☆☆ Get 100,000 honors in Imagination Overdrive Crystal ×10
Imaginative Prodigy イメチュンの申し子 ★★☆ Get 500,000 honors in Imagination Overdrive Crystal ×30
Imagination Explosion イメージ・チューンナップ！ ★★★ Get 1,000,000 honors in Imagination Overdrive Crystal ×50
The Dark Spirit Was Vanquished! 暴走する黒歴史 ★ Defeat Evil-Eyed Fencer (Very Hard) in a raid battle you started Crystal ×10
Legendary Commander 全空で指折の天才指揮官 ★ Defeat Nefarious Emperor Polo (Extreme) in a raid battle you started Crystal ×10
Anonymous Author 無名の作家さん ★☆☆ Clear Imagination Overdrive raid battle 5 times Crystal ×10
人気耽美絵師 ★★☆ Clear Imagination Overdrive raid battle 50 times Crystal ×30
God-Tier Romance Artist 耽美界隈を代表する神絵師 ★★★ Clear Imagination Overdrive raid battle 200 times Crystal ×50
Imagination Gone Wild 妄 想 爆 発 ★ Defeat Evil-Eyed Fencer (Nightmare) Crystal ×50

History

See: Imagination Overdrive/History

Voiced Trailer

This section needs an English translation of Japanese text.
Please help by contributing a translation!
(Note: Machine translations, such as Google Translate, are not acceptable.)
Japanese[1] EnglishThis is an unofficial, amateur translation.

団長さん、ちょっといい？

もしかして私宛の郵便物って届いてない？

たまに発売日前に到着することもあるとかないとか
まぁ流石に無理か

シェロさんによるとポポサガ新装版の予告凄い反響みたいだし

は？ポポサガって何？て何？
前に説明したのに忘れちゃったのー？

じゃあえっと

ポポルサーガとは、史実と空想を織り交ぜた娯楽作品で作者不明の全九巻、結末にあたる十巻は原稿が失われてしまって未完の大作と呼ばれてるわ
でもそれゆえに様々な作家が自由に考えた結末を発表していて、アマチュアも気軽に独自の派生作品を書いていい土壌が生まれたの
登場人物が男性ばかりというのもあって女性の読者が多いのも特徴の一つ
今回の第一巻は主役のポポルさまと異母兄のルポポ兄さまが過酷な運命に巻きまれる禁断！の物語よ
うはは

次回、グランブルーファンタジー
『いめちゅん！』

空の歴史がまた一頁......


Trailer Teaser Text

This text only appears in the voiced trailer pop-up window.

Relive the historical epic of Popol Saga
through the all-new Revised Edition—
coming to a bookstore near you!

Volume One begins with the Castile Empire as the backdrop. The despot Polo is father to two children. His first son, Lopop, was birthed by his lawfully wedded wife of noble standing, while his second son, Popol, was birthed by his concubine of commoner upbringing. The cruel wheel of fate begins to turn in a struggle between the rich and the poor...

Preorder now to get a limited-edition postcard!

Write us your impressions of Popol Saga on the postcard for a chance to win a special prize!

Next up in Granblue Fantasy,
Imagination Overdrive

The page turns yet again...

Trivia

Guide

References

  1. ↑ https://xn--bck3aza1a2if6kra4ee0hf.gamewith.jp/article/show/301798
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