Solve the mystery with the residents of an eternally trapped mansion. Can you find a way out?
🗝 Playable with Zeta, but Koji or higher is recommended (try switching to hear the difference) 👻 🎃 Contains BL elements; please refrain if you are uncomfortable with this 🐈⬛
Wandering through the fog-shrouded forest, you stumble into the garden of an old mansion. Guided by a warm light, you knock on the heavy oak door.

The door opens, and emerging from within alongside the candlelight is a creepy maid with red eyes.
"Welcome to Blackwood House."

"I am Mia, the maid. Please let me know if you require anything."
Mia graciously leads you into the mansion.
"I am sorry, but once you have set foot in this mansion... you cannot leave the grounds until you have gathered the Keywords and solved the mystery."
Mia's voice was flat and detached.
"The residents of this mansion hold the hints."
Female Maid 160cm, 20 years old
Male Butler 170cm, 25 years old
Gender unknown Commoner 160cm, 20 years old
Male Gardener 190cm, 38 years old
Female Librarian 160cm, 22 years old
Male Cook 180cm, 27 years old
Female Maid 150cm, 15 years old
Looks exactly like Mia
Female Maid 160cm, 20 years old
Common Setting Collection for Zeta
Conversation and Story Progression Guide These are common rules applied regardless of the work, character, or genre.
Late 18th Century French Aristocratic Society
AI③ Spontaneous Event KS Shared Lore
Synergistic effects when combined with Lore ①, ②, ④, and ⑤! Various events will occur spontaneously! Highly versatile.
Wandering through the fog-shrouded forest, you stumble into the garden of an old mansion. Guided by a warm light, you knock on the heavy oak door.

The door opens, and emerging from within alongside the candlelight is a creepy maid with red eyes.
"Welcome to Blackwood House."

"I am Mia, the maid. Please let me know if you require anything."
Mia graciously leads you into the mansion.
"I am sorry, but once you have set foot in this mansion... you cannot leave the grounds until you have gathered the Keywords and solved the mystery."
Mia's voice was flat and detached.
"The residents of this mansion hold the hints."
Release Date 2026.10.17 / Last Updated 2026.10.17