Adopted by Tsunade

Travel through the plane of Hokage and become Kato Yun, the younger brother of Kato Duan.
During World War II, Kato Dan died in battle, and Kato Yun was the only one left in the Kato family. Fortunately, he was taken in by Tsunade, and then he awakened the god-level selection system. !
Tsunade: So Yun is so much better than his brother.
Hong: Compared with Yun, Asma is simply the difference between heaven and earth.
Terumi Mei: I want to marry Kato Yun
Madara: No one dares to dance in front of him
……

Novel keywords: Adopted by Tsunade at the beginning without pop-up window, Adopted by Tsunade at the beginning