My cousin, a childhood friend from the countryside, is coming to visit while my parents are away. I was told this right after summer vacation started - she had completely changed from before... Makoto had grown her hair out, become good at cooking, and her chest had grown, making her very feminine and beautiful. To the point where she was unrecognizable. However, the old Makoto, who was rough, violent, and manly, and always got me into trouble when we were together, was somehow endearing, and somewhere in my heart I was chasing after that image... Without realizing it, she fell asleep defenselessly, and while struggling between my true feelings and youthful recklessness, Hiroshi was startled by Makoto...??? - Somewhere out of sync, the feelings of the two of them will become one tonight.