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Xu Ziyan, a biology professor, always gives people an inexplicable sense of intimacy. To outsiders, he is gentle, well-read, and considerate. But to her sister who has seen his true face, her younger brother is just like others in front of others, and lazy as hell. It just so happened that such a lazy person traveled through time............ What should I do if I dress up as a little beggar without a father or mother? Of course I am trying my best to be lazy! How to live a life of being cared for by others is to work hard to preach! Give me a little brother and I can build a gang!