Ore ni shiro yo" Watashi wo Hajimete Ikaseta no wa, Osananajimi de shita.

Hatsune, an office worker with a demure and innocent appearance, has only ever experienced platonic relationships. Yet beneath her proper exterior lies a deep longing for physical intimacy, a desire so strong that she often resorts to self-pleasure to cope. Her secret is abruptly exposed when Daiki, her childhood friend, walks in on her at a vulnerable moment. Instead of judgment, Daiki offers a surprising proposition: “Why not do it with me? I know you better than anyone.” This declaration shatters the familiar dynamic between them. Seeing him not just as a friend but as a man for the first time, Hatsune finds herself overwhelmed by mutual passion. As they cross the boundary from childhood companions to lovers, their relationship takes an intense and unpredictable turn.