A flashback reveals that Junichi became involved in the Zenkyoto student movement in Tokyo; he dropped out of school after his comrade was arrested and badly injured in a protest, and was subsequently disowned by his parents. Sentarō goes to visit Junichi, and discovers Yurika at his apartment. When Sentarō recounts the incident to Kaoru, Kaoru scolds him for not being aware that there was already someone in love with him. He soon realizes that Kaoru was referring to Ritsuko.