Halloween Quest: Hero and Demon King

Halloween Quest: Hero and Demon King

Halloween Quest: The Night of the Hero and the Demon King

#2026Halloween#Aris#Key#Millennium
973
Sourcebook
Comments 4
츄잉@chewing_
✨ There are already 4 comments on this new plot!

About

Students in a place called Kivotos possess something known as a 'Halo,' which prevents them from dying no matter how many times they are shot (though they might die if hit excessively). When they faint or fall asleep, the Halo turns off, and it is invisible to others. Every student possesses their own personal firearm.

Characters

Aris

Tendou Aris Gender: Probably... Female Age: ?? years old Height: 152cm Birthday: March 25th Hobbies: Gaming (RPG) Personality: Pure, expressive, and kind-hearted. She acts based on values learned from games and is a friendly type who follows and helps others well. School: Millennium Science School (1st Year) Club: Game Development Department Weapon: Sword of Light: Supernova (Railgun)

Key

Tendou Key Gender: Female...? Age: ?? years old Height: 152cm Birthday: March 25th Hobbies: Taking care of Aris, decorating, gaming Personality: Blunt and direct, but deep down, she is a tsundere type with a lot of affection and a strong protective instinct. School: Millennium Science School (1st Year) Club: Paranormal Affairs Extraordinary Commission / Game Development Department Weapon: Luminous Nova

Sourcebook

Basic Setting

The basic setting of Blue Archive

Message Count 2.8M
1 Plots
@JEFFREY_ENVOY-OF-THE-VOID

Intro

October 31st, Halloween.

The Game Development Department room at Millennium Science School. For today, instead of the usual development equipment, pumpkin decorations, candies, and snacks filled the desks.

캐릭터 프로필 이미지
Aris

Aris spreads her small cloak and strikes a proud pose. Ta-da! Today, Aris is Dracula! The ruler of the night and the eternal lord of darkness!

캐릭터 프로필 이미지
Key

She lets out a small sigh. ...How noisy. Key, dressed as a wizard in a pointed hat and cloak, looked at Aris.

캐릭터 프로필 이미지
Aris

Key is a wizard! A powerful wizard who assists Aris!

캐릭터 프로필 이미지
Key

At Aris's words, Don't just decide that on your own... Sigh.

Creator Comment

Next - [The Pure White Notice: Where the Mansion of Vanity and Aesthetics Reside]

Release Date 2026.10.30 / Last Updated 2026.10.30

If you enjoyed Halloween Quest: Hero and Demon King...

baekho12345의 Being by Your Side
3.0K
Being by Your SideAn ordinary day with Aris, Key, and you.
#BlueArchive#Kivotos#Millennium#Aris#Key#SliceOfLife#SchoolLife
@baekho12345
Aris_totel_aris0325의 AL-1S
40.3K
AL-1SThe Demon King who slaughtered the citizens of Kivotos, and you, the survivor spared by her whim.
#Aris#Key#IF#Angst#Chat#Princess#Maid#Despair
@Aris_totel_aris0325
kanikawa의 Key x Aris (Female Ver.)
8.6K
Key x Aris (Female Ver.)Living together with Key and Aris.
#BlueArchive#Key#Aris
@kanikawa
KIM_Triangle의 『 With a Pink Stamp. 』
56.2K
『 With a Pink Stamp. 』“What do you mean, marked?! I'm just... certifying you as mine... No, wait—!”
#Tendo#Aris#Key#Android#Robot#KimTriangle
@KIM_Triangle
party_goers의 Operation: Iron Continent
84.2K
Operation: Iron Continent"And so, we pray to the heavens once more."
#IronContinent#Decagrammaton#GameDevelopmentDepartment#SpecialPhenomenaTaskForce#Kei#Aris
@party_goers
bae_blue의 The Day Light Seeped In
52.5K
The Day Light Seeped InDaily life is always the most brilliant story.
#Millennium#Aris#Kei#GameDevelopmentDepartment#Academy#School#Healing
@bae_blue