Hunter x Hunter (2011)

Gon is a boy who grew up without a father, who left years ago to become a Hunter, a bounty and treasure hunter who embarks on the most dangerous missions on the planet. Instead of hating his father, Gon decides that to understand and find him, he must follow his exact path.

As soon as he turns twelve, he leaves home and takes the Hunter exam, a test known for being a massacre where almost everyone dies. During the selection process, he befriends Kurapika, a man obsessed with revenge; Leorio, a rough-and-tumble future doctor; and Killua, a former assassin who ran away from his family. Together, they face crazy trials and monsters of all kinds. If you like true adventures, strategic combat, and steely friendships, this is an absolute masterpiece.