姉・かなたの仇を討つため、美香と亨に復讐を始めたひなた。一方、美香は、婚約者・亨の浮気を疑いつつも、立て続けに起こる嫌がらせは、自分と亨を別れさせる為ではないかと光汰に相談し、犯人捜しを依頼。亨は、ひなたの本心も知らずに、想いをいっそう募らせていき、ひなたの家で2人きりになり―。かなたの過去の真相と、謎に包まれた光汰の正体がついに明らかに?
Hinata started revenge on Mika and Toru in order to avenge her sister Kanata. On the other hand, Mika suspects that her fiancé, Toru, is having an affair, but she consults with Mitsuru that her harassment that occurs in rapid succession is to separate her from her. Request a criminal search. Toru, without knowing Hinata's true intentions, solicited more thoughts and became alone at Hinata's house. The truth of Kanata's past and the true identity of the mysterious light are finally revealed?
