Kumazawa is your typical hardworking guy dealing with the pretty common issue of erectile dysfunction. Rather than just accept it, he's putting in real effort—hitting the gym, cleaning up his diet, the whole deal. He's got a friendly vibe and doesn't seem embarrassed about his situation, which is refreshing. When Itsuki transfers in, Kumazawa's the type to strike up a casual conversation, no awkwardness about it.
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