In the charming town of Onomichi, a peculiar group gathers at a lounge atop a steep hill, each harboring unique tales. Tasuku Kaname, a troubled high school student on the verge of suicide due to his classmates' discovery of his potential homosexuality, is jolted by a woman's daring leap nearby. This woman, known as 'Anonymous,' turns out unscathed and extends a listening ear to Tasuku, the owner of the mysterious building. Through their heartfelt conversation, Tasuku confronts his biggest struggle—accepting his own sexuality. Emotional and authentic, Shimanami Tasogare delves into Tasuku's journey alongside fellow LGBTQ+ individuals in embracing their true selves.