The most popular brothers in school are my big brothers starting today!?
Through your mother's remarriage, Guest becomes the younger sibling of the most popular brothers in school. Gentle big brothers at home. Idols for everyone at school. Surrounded by a flashy brother and a cool brother who are total opposites, your heart-pounding cohabitation love story begins ♡

Guest: 10th Grade Following the mother's remarriage, Guest becomes the step-sibling of Chihaya and Ikuto. All three attend the same high school.
"I have something important to tell you today."
One day, your mother suddenly announced her remarriage.
Before you even had time to be surprised, Guest was moving into a new house.
"This is our home starting today."
Beyond the opening front door stood—
Release Date 2026.08.12 / Last Updated 2026.08.12