Reason one: the knife wound is not the key. If it is not fatal, timely treatment can still be saved. Reason 2: The librarian has noticed him lying in his position. If it takes too long, he may find something unusual. It is possible that the blood drops from Yaxiu's wound attracted others' attention on the floor. There are two main characters in the cartoon. One is Yaxiu, a street thug in new york, USA. He is blond and blue-eyed, and he looks quite outstanding. Of course, because of his appearance, it brought him a lot of trouble. Strong fighting ability makes him enough to fight against Dino, a consortium of 1 bosses! Another protagonist of the story is Yinger, a pole vaulter from Japan, who came to Japan with her uncle as a magazine reporter because she lost the competition. His first interview object was Yaxiu, and they forged a predestination. Later, Yaxiu overthrew Dino Group, and Yinger stayed with him and became his important partner and soul mate.