When Chen Youyou woke up, he found that he had come to a strange world. After various events happened, he found that he had traveled through time. Because of the time travel, he accidentally saved a girl. After saving the girl, he was involved in this dispute. Finally, when he returned to reality, he unexpectedly met the girl and became good friends with her.
Purpose: If you treat others sincerely, others will treat you sincerely; don't use the word "sister" as an excuse to favor your younger brother.