Seiya, a host, secretly takes care of his late sister's child, Tenma, who is an adorable angel that brings him much-needed love and comfort. One night, while riding the elevator to his luxurious apartment, Seiya is unexpectedly kissed by an inebriated stranger who turns out to be his neighbor - a dangerous yet intriguing writer. Follow the journey of these two men as they navigate their unique parenting bond in the BL series "Komochi no Host no Kiken na Rinjin" (Vol. 1), "Komochi Host no Shinshi na Rinjin" (Vol. 2), "Komochi Host no Kahogo na Rinjin" (Vol. 3), and "Komochi Host no Saikou na Rinjin" (Part 4). Despite Seiya having no intentions to fall in love, he embarks on a complex romance with the mysterious writer.
