Hunter x Hunter (2011) S01

Hunter, meaning a hunter, is someone who travels to all parts of the world to perform dangerous operations to obtain hidden treasures. In the depths of unknown lands. "Gun" is the son of a hunter who has been missing for a long time. He believes that if he continues his father's path, he can finally find him and return home. "Gun" leaves his home at the age of 12 to participate in the Hunter Exam, a test full of deadly trials. On this journey, he finds three close friends. "Kurapika" eager for revenge, "Leorio" a doctor, and "Killua" a former assassin. The four of them cooperate with each other to overcome the difficult stages of this test. This anime is based on the manga of the same name written by "Togashi Yoshihiro".