Mymanga cerita

Moon tries to find his sister for ten years, he does not see her after the death of his family who were killed by the shadows. After so many years he managed to find her and becomes a shadow slayer.To defeat the shadows,they must defeat the villain who controls them (He is the strongest character in the whole story).

About a kid named kenryoku who's goal is to become the number one ninja he also makes many friends and bonds during the journey he also is half demon and an orphan

This manga is a story about a young boy named Yuuta. He's actually the Shinigami's son, but he keeps that a secret, afraid that people will shun him. His father gives him missions to go out on, fighting villains and demons everyday. His weapon is a spear, and it can turn into a handy halberd for backup. Yuuta goes to a special school called 'Double Star Academy' for fighters and warriors. One day, a city is attacked by powerful demons called 'Crawds'. Yuuta is sent to defeat the demons and gains a fatal injury during the mission. His father sacrifices his life to save Yuuta. Now, Yuuta is the new Shinigami. He carries around his guilt of his father's death. Yuuta plans to get rid of the burden, but how?