Two years ago, Maki married her boss, suddenly becoming the mother of Kaya and Makoto. But after her husband's sudden death, an unusual family structure forms—bound by neither blood nor marriage—ushering in days of instability. As emotional uncertainty collides with uncontrollable sexual desire, inner turmoil intensifies. In search of true love, she confronts a series of life-changing events. A realistic, intense human erotic drama crafted by a stellar cast and a renowned female director. This moving and passionate story reveals the raw, essential emotions that transcend the boundaries of family.