Five fated girls under one roof! A seaside rom-com with an abundance of heroines! Akane makes a sudden proposal to Hayato, asking him to make her his wife! As Akane's grandmother Yoko makes an appearance, Familia's six-person tangle of love and family relationships is thrown into turmoil! With the arrival of Christmas, Shiragiku and Akane's unrequited feelings are on the verge of exploding! The battle for Hayato's affections begins, with a first kiss at Christmas! Let the Christmas party begin!