Ding dong! When I opened the door to my apartment, a beautiful black-haired girl was standing there. "Long time no see! Do you remember me? I'm Mihina—we used to play together back in elementary school!" Surprised by this sudden reunion, I couldn't help but feel my heart race at her cute yet mature appearance. She told me she'd just arrived in Tokyo and hadn't found an apartment yet, so she asked if she could stay over until she did. How could I possibly say no? She offered to cook, clean, and even promised to do everything for me sexually... And just like that, an unexpectedly dreamlike cohabitation begins. The entire film is shot in first-person POV, delivering an emotionally powerful and unforgettable experience.