Killing Becomes a Saint: Starting from a Waste with Fifty Blood

Lin Feng, a high school student, was killed by the evil boy Zhao Ming, and his younger brother who depended on him was also surrounded and killed. When he was about to die, he activated the killing system and was reborn in a different world, the Iris Continent, where he became the useless third son of a general. Here, you can gain health points by killing monsters and become stronger. When he is strong enough, he will return to Blue Star and launch bloody revenge on his enemies with a new identity.