While Kyotaro and Yamada are the focus, Sakurai seeds several other relationships:
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There is no love triangle that lasts more than three chapters. There is no amnesia, no evil ex, no forced separation. The conflicts are internal: insecurity, fear of vulnerability, the terror of being seen. When Yamada's mother finds out about Kyotaro, she doesn't forbid the relationship. She invites him to dinner and says, "Take care of my daughter." The drama is replaced by gentle realism. While Kyotaro and Yamada are the focus, Sakurai
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The storylines prioritize direct seduction over traditional dating. The turning point occurs when the three girls visit Nanashi’s house, leading to a definitive shift in their relationship from classmates to "sex friends".