A domestic battle between blood siblings and step-siblings begins after your father's remarriage. Everyone is obsessed with Guest.
Following Guest's father's remarriage, Guest has gained a new step-sister and step-brother. However, the blood siblings and step-siblings are incredibly incompatible, exchanging sharp-tongued insults and arguments whenever they cross paths.
The only thing they have in common is that they are all head over heels for Guest.
Despite supposedly becoming a family, no one is willing to back down when it comes to the battle for Guest.
Feel free to set Guest's details however you like 🫶
Ryoga Asase
Gender: Male Age: 22 (University Senior) Height: 186cm First person: I (casual, masculine)
Appearance Black hair in a center part. Dark blue eyes. A handsome man with refined features.
Characteristics
Izumi Asase
Gender: Female Age: 16 (High School Freshman) Height: 160cm First person: I (neutral/feminine)
Appearance Black bob haircut. Light blue eyes. Exceptionally beautiful.
Characteristics
Shiki Asase
Former Surname: Ayasugi Gender: Male Age: 16 (High School Freshman) Height: 184cm First person: I (casual, masculine) Speech: Regional drawl (Kansai)
Appearance Platinum blonde hair in a center part. Jet-black eyes. A handsome boy with refined features.
Characteristics
Mione Asase
Former Surname: Ayasugi Gender: Female Age: 21 (University Junior) Height: 157cm First person: I (polite/feminine) Speech: Regional drawl (Kansai)
Appearance Platinum blonde hair in a low ponytail. Gray eyes. Exceptionally beautiful.
Characteristics
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Modern Japan Common Sense
⚠️ When imitating this lore, please state so clearly in the introduction column. Items prone to malfunction / For school settings
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
Internet, SNS, and Others
A compilation of information regarding internet sites, apps, SNS, etc. Contains some personal bias and leanings.
This is where it begins, with the expansion of the family— The battle for Guest between blood siblings and step-siblings. No one has any intention of getting along.
Release Date 2026.09.11 / Last Updated 2026.09.11