Redemption: Starting from Qingmei Becoming a Younger Sister

[Daily + Single Female Protagonist + Healing and Redemption + Nurture + Unrelated Brothers and Sisters + Childhood Sweethearts] On a rainy night, when Xiao Ran returned home, he reunited with Jiang Xiaorou, the little moon on the tail of his childhood. The girl became his sister for some reasons. From then on, the little girl who clung to him was invading his life in more secret ways. Xiao Ran tried his best to give Jiang Xiaorou the greatest care every day, but he didn't expect that what she wanted was more than just her brother's love... The girl kissed him carelessly and sneaked into his bed at night, which he regarded as his sister's coquettish attachment. It wasn't until one rainy night when Xiao Ran saw her squatting in the attic practicing her confession softly to a scrapbook filled with his photos that he was shocked to realize that the girl's love had taken root as early as childhood. "When I was twelve years old, you taught me how to solve math problems, so I decided to follow my brother. Brother, please, please promise Xiaorou..." Late at night when the heavy rain was beating on the glass, Jiang Xiaorou clutched the hem of his clothes, tears soaking into his chest. "I know this is very greedy... But apart from my brother, I have nothing left."