Iroha Seino and Junichi have been dating for just over a month. Despite an 8-year age gap, they face each other with sincere feelings. Junichi, serious and honest, deeply cares for Yoriko but lacks the courage to take their relationship further. Yoriko thinks, "So this is what they call a herbivore man," and begins to feel slightly impatient. Realizing the situation, she decides, "Then again, as the older woman, it's up to me to make the move." Here begins a pure, warm love story where their feelings grow ever deeper.