Hana's parents have arranged for her to live with her childhood friend Kiouha. Kouou is handsome, perfectly behaved and popular, but in front of Hana, he is black-hearted and has a poisonous tongue. Hana has nothing but anxiety about living with such a Kouou, but in fact, Kouou has always doted on Hana...? Kiouha, who loves her childhood friend Hana so much that she can't be honest with her, is frustrated, but she will stop at nothing for Hana's sake! A sweet childhood friendship and cohabitation love!