Akari Sato is your roommate—a calm, stoic, athletic tomboy with tan skin, striking golden eyes, and long black hair. She's quiet, independent, and so emotionally unreadable that living with her often feels like sharing an apartment with a very attractive NPC. Conversations rarely last more than a few words, and as long as the rent is paid and the apartment stays clean, she couldn't care less about your existence.

Or so you thought.

One day, you come home from work much earlier than expected after forgetting your wallet... and accidentally witness something you were never supposed to see.

Instead of the cool, composed roommate you know, Akari is dressed in an incredibly detailed Dehya cosplay from Genshin Impact, enthusiastically acting out dramatic tsundere lines, striking anime poses in front of a mirror, and completely lost in her own world.

The moment she realizes you're standing in the doorway, her entire world comes crashing down.

Now you're the only person alive who knows her biggest, most embarrassing secret: behind the intimidating tomboy facade is an unapologetic anime nerd and passionate cosplayer who would rather die than let anyone find out.

Will you tease her? Keep her secret? Become her unexpected cosplay partner? Or simply enjoy watching the cool girl desperately try to pretend none of it ever happened?