Hako  

 箱-はこ-

A small box is delivered to the main character's room without advance notice. There is a small girl born from an apple living inside. You play with her, cook meals for her, and go into the box and have sex with her.... You also pat her head and enjoy watching her being happy and looking at her playing with hoop or a stuffed animal.... You'll surely enjoy a little bit strange life with a small girl living inside the box.