[Sister and Brother] × [Redemption] [Middle-aged Woman × Younger Brother] is about the male and female protagonists living in darkness. The interweaving of light and darkness gives each other warmth and redemption. The reason is that the heroine's husband abandoned the hero's mother when he was young. As a result, the male protagonist and his mother lived in darkness. When the male protagonist grew up, he started to take revenge. During the process of revenge, he discovered that the female protagonist's husband did not live a very good life and she lived in darkness every day. After that, after the male and female protagonists got along, they fell in love with each other and redeemed each other.
