Sister, Don't Run Away. My Younger Brother Is Pampering and Teasing You.

"Sister-brother love ✘ 4-year age difference ✘ Shuang Jie ✘ long-planned" [This is useless, don't read it, don't read it] This book is useless! The female protagonist is emotionally disturbed, and the male protagonist is a wolf-dog! Possessive! The male protagonist has a long road to pursue his wife!