Myeongha’s beloved boyfriend Taeon—her pride and everything—has died, leaving behind a will addressed to his friend Jeongu: “I leave all my assets to my beloved girlfriend.” But there’s a twist—Taeon had not one, but three girlfriends. Under Jeongu’s supervision, a quiet yet intense battle unfolds. With 3 billion won at stake, only one can inherit it all. Who will emerge as the “beloved girlfriend,” and what truths will surface as each woman stakes her claim?