Cheer UP! My Bro.

A young girl accidentally deletes her older brother's RPG save file, which he had spent countless hours building. Panicked and eager to make amends, she decides to recreate the lost experience in an unconventional way: by dressing up as the character he had painstakingly developed.

Her brother, initially frustrated by the loss, soon finds himself drawn into a strange and awkward situation. The line between sibling affection and something more begins to blur as the two navigate this unexpected roleplay, leading to a series of intimate and compromising encounters.