Girl (Kasumi) loves someone else who helped her and liked her, glasses guy steals her by claiming her to be his fiancee (says girl's deceased parents wished for it) and then fucks her in beach while letting previous chapter's guy see it from hiding to prove "she's mine now in heart and body". All the glasses guy's words of love and care towards her and claim about her parents' wishes are hinted to be bullshit in his expressions.