"If you really can make me the center of the group... I'll marry you." Mizuki Natsuno is the least popular member of the idol group "Melty Strawberry." Koichi Okuda is the only person in the world who continues to support Mizuki. Two people who should never be connected, end up in a cooperative relationship under one roof, working her way up from the bottom of the ranks to become the leader of the group.