The new teachers at high school student Toruma Nijino's school are his ex-girlfriends who dumped him in the past! Moreover, both Akamine Shuri and Shirasawa Kohaku are still in love with him. He is happy to see them again, but.... But he is not happy to

On the way home after filing for divorce, Kohei Kurose is hit by a car and is transported back in time to his high school days!Determined to enjoy his new life, he heads back to his high school, only to find his ex-wife, Yuzuka, there...?