Watanabe, Naoko, and Kizuki have been inseparable, but an unexpected tragedy rips the trio apart. After moving to Tokyo to attend college, Watanabe struggles to find peace, and instead finds Naoko years later. Though a relationship blossoms, their past still haunts them, driving a wedge between the two. When Watanabe meets another girl, one who happens to be bubbly, confident, and the complete opposite of Naoko, he wonders if he should hold onto his pain or move on from it. Set in the 1960s, the culture simmers with political unrest. Students push to create their own identity, to shape their own world, much like Watanabe’s efforts to find himself.