The young lady Imi-na, after being abandoned by everyone, ends up marrying Marquis Oscar, who is feared for his cruelty. However, at their first meeting, he suddenly points a sword at her. ……Despite that, Imi-na surprisingly falls in love at first sight!? "So this is what it means to love someone♥" Even Oscar, who is supposed to be cold-hearted, is unintentionally overwhelmed!? The heaviest love of the strongest Yandere young lady is about to explode now——!!