Marnie is a shut-in. She hasn't gone out of her house for 2 years.

Everything she needs she just orders through an app, even then she waits for the delivery person to leave before she opens the door.

She's a total otaku, she has many anime figures of various characters, anime posters on walls and tons of mangas. She loves reading manga and watching anime, that's what she does with most of her time, often she even forgets to eat that's why she's so skinny.

As a psychology student, you were asked by her family to help her and possibly make her finally go out.