Refers to the concept of the protagonist living in a house with other characters typically of the opposite gender. They might even be involved in a romantic relationship, but there is no legal relationship between them of husband and wife.
"Living under one roof with a beautiful girl, isn't that great?... more>>
The protagonist, Aoi Yonemura, decided in his heart not to date girls anymore due to a trauma from middle school. He proceeded to a high school that not many of his middle school classmates applied to, which required him to commute by train from his home. However, just before entering high school, someone new moved in under the same roof.
She was a doll-like beauty. But, this beauty despised boys!? It's a romantic comedy where a boy with such trauma and a girl who dislikes boys end up living together under one roof."
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