Childhood friends Lia, Suisei, and Emito have protected each other since childhood. Over the years, that friendship blossomed into love, and now they live as a married throuple! This sweet, spicy polyamorous slice-of-life story follows the challenges they face, the risks they take, and the intimate side of their unique three-way bond. First on the agenda: after years as the house-husband, Emito wants a part-time job! (Source: Seven Seas Entertainment)

3 Partner Hajimemashita!! was published in English as We Started a Threesome!! by Seven Seas Entertainment from December 5, 2023 to September 3, 2024.