Oohata Kazunari and Nakamatsu Yae share a secret they can't tell anyone: they are "living together."

However, on their first day of school as third-year high school students, a minor incident leads to their secret being exposed to their classmates. From that point, their relationship begins to change...

This is the story of how two people, who are "not yet" dating, eventually get together.

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Serialization began on NovelUp+ on February 1, 2020.