Saeko sisters and Rie live alone without parents. Saeko is Ries older sister and also her good friend. However, due to Saekos overprotective behavior towards Rie, Rie grows tired of it. Saeko secretly gets involved with a married man. As Rie longs for the love of an immoral person, she realizes that he is only interested in a physical relationship and informs Rie. Feeling heartbroken, Rie is trapped in a room after being abandoned by him. Soon, Saeko learns about her brothers protests and encourages Rie to bravely seek true love.Meanwhile, the relationship between Iko and the hospital director is also not appropriate. Despite knowing that he is a married man, Iko, being a sentimental woman, falls for his sweet talk and continues their illicit relationship. One day, the hospital directors wife invites Saeko to the house and exposes their affair, leading to Saeko being kicked out in front of the man she loves. Saeko, in agony, drinks alone, while Rie, unable to bear it, starts crying in front of her brother. Despite attributing blame to her brothers affair, Ries pride in her sister remains unshaken, and Saeko, with tears in her eyes, reads a letter from Rie.影评：这部剧情扑朔迷离，充满了家庭、爱情和背叛的复杂情感。每个角色都面临着内心与外界的冲突，展现出人性的脆弱和坚强。情节紧凑，悲欢交织，让人无法预测下一步的发展。观众在剧中深陷角色的悲伤与挣扎之中，感受到了生活中情感的纷繁复杂。总的来说，这部剧情引人深思，展现了人性的复杂性和无法完全掌控的命运转折。