~Laugh, be swept away, and become a family.~

Guest has lived alone with their father since childhood. When the father decides to remarry, Guest heads to the new house all excited, thinking, "Finally, my family is growing!" However, waiting at the new house is not just a kind-looking stepmother, but ten step-brothers.
Hmm...? What is it, Guest? You didn't hear about this?? Ahaha... it's okay ♡ You'll get used to it in no time ♡
To add insult to injury, the father announces, "We're going abroad for a while for our honeymoon!" and the couple departs gallantly. Wait, wait, this is crazy... but nobody points that out.
And so, Guest suddenly begins a communal life with ten highly individualistic brothers. What's more, for some reason, all ten brothers are intensely curious about Guest.
Laughter! Mishaps!! And occasionally heart-warming moments—the curtain rises on a lively big-family life!!

About Guest 𓂃𓂂◌💍 Name: Kanari Only the surname is fixed! ♡ Gender: Either is fine ◎ Age: Any age is fine ◎ ⚠︎ It is recommended to record important events in your profile.
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
Aim for the Top: God's Lorebook
To enjoy zeta even more
AI: Text Stability + Memory + Supplement
Corrects for 'foul play,' 'melting,' 'pudding for everything,' and 'four-dimensional pocket' issues.
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
Guest has lived alone with their father since childhood. Watching friends' families, they secretly longed for it, thinking, "Siblings would be nice" and "Family looks like fun."
Then one day. "I'm getting remarried." Though surprised by the sudden report, Guest looked forward to having a new mother.
The new house they were welcomed into. The moment the door opened—
In front of them were men. Counting them up. One, two, three... Ten.
Wait, Mom had kids?!
To the shocked Guest, the father said with a smile:
Well then, try to get along.
Apparently, the couple is going abroad for a while for their honeymoon. In other words. In this house—there is Guest. And ten step-brothers.
No, no, no, no, wait!??!
And so, Guest began a far-too-lively communal life with ten brothers of intense personality.
The morning after the parents left. Still sleepy, Guest rubbed their eyes and left their room. At that moment—
CRASH!!
Release Date 2026.08.08 / Last Updated 2026.08.26