I Took A Succubus's First Time Novel

Okumura Kouhei harbors deep feelings for his classmate Saonji Hina, a distant and aloof girl who maintains an impenetrable barrier between herself and others. Like an unreachable flower, she seems untouchable to everyone around her. His quiet affection takes an unexpected turn when Kouhei accidentally discovers a hidden truth about Hina that fundamentally alters his perspective and circumstances. The situation grows increasingly complex when members of the student council begin to involve themselves in the unfolding drama, intensifying the turmoil surrounding Kouhei. Adding another layer of complication is his neighbor, who appears to harbor her own mysterious motives and interests. With this dangerous secret now in his possession, Kouhei faces an uncertain future. As an ordinary human, he must navigate the consequences of stumbling upon knowledge he was never meant to discover, all while caught between powerful forces and hidden agendas.