Reject-Boy

The story is about a teenage boy named Zack tried to get a girlfriend but got rejected by several girls many times. He was too easy to being manipulated by people. He was too easy to trust someone without knowing the truth behind it. He is too kind towards anyone until they stepped on him. Because of that, his life was ruined by them. He thought that humans are cruel. He tried to suicide and almost died from depression. Did he manage to find the meaning of love?