[DeepL Translation - needs review] Volume 1 Introduction: Yudai, a college student, is spending his days in moratorium after breaking up with his first girlfriend early in life. However, when he meets his sister-in-law Yuna, who has moved in with him after her parents' remarriage, he feels more than love at first sight. His feelings gradually escalate, partly due to Yuna's suggestive attitude. The moment his feelings cross the line, Yuna's true nature is revealed... A girl shouldn't hug him?...
