Izutsuki had just exchanged photos with his online dating friend, fully expecting to find a handsome guy. Unexpectedly, he bumped into the person in the photo on campus the next day. She fell in love with him when they first met, and she decided that the other person was her online boyfriend, so she took the initiative to get closer to him. The two traveled through the campus together, sharing daily details, their two-way heartbeat slowly fermented, and they fell into a sweet and green love. An unexpected mistake led to a wonderful fate.