What does it mean to say, ``I ended up going out with this girl'' even though I just mistook my smartphone!? One day, Hana Koi, a first year high school student, mistakes her smartphone for her handsome classmate Sho. Hana Koi doesn't want her message to be seen by the person she loves, so she tries her best to get him back! However, for some reason, she gets caught up in Sho's breakup story, and her new life takes an unexpected turn...? A super exciting real love story about a tsundere boy who helps you with his casual kindness!

Due to family circumstances, Koharu, a second-year high school student, ends up staying with a friend. It turns out to be the home of her classmate, Saku, who is extremely handsome but famous for hating women...! What's more, Saku has a habit of hugging the first thing he touches after waking up...!? A dangerous cohabitation romance is forced to begin!