I love my mother, Kana. The reason is that Kana-san is not his real mother, but the woman his father remarried and whom he admires. After my father passed away, she single-handedly raised me, even though we weren't related by blood, to university. At the same time as I wanted to repay Kana-san, I had feelings that were stronger than those of my mother. However, his feelings are shattered by his best friend Kenji. Kenji, who supported the relationship between me and Kana-san but also envied it, suddenly approached Kana-san...