The story is actually quite cliche: one day, Zhou Qichen and Xu Hongshen found a little boy with brown hair and blue eyes outside, and named him Xu Yunshen. They raised him as an adult, but had to separate from the little boy because of troubled times. Then one day the little boy came back... Huh? Why is it different from the promised brother-in-law? Abel Le Rolland: I don't want to be a younger brother (+??+??') This article is a derivative of the anthropomorphism of the Woliu discipline. Abel Le Rolland: Mathematics Zhou Qichen: Chinese Xu Hongshen: Chinese History Main CP: Mathematics × Chinese Sub CP: Unknown