12 titles recommended if you like The Tale of Outcasts
Claymore
Tower of God
Fushigi Yugi: The Mysterious Play
The Seven Deadly Sins: Four Knights of the Apocalypse
Bye Bye, Earth
Sugar Apple Fairy Tale
Orient
Sacrificial Princess and the King of Beasts
Vampire in the Garden
The Ancient Magus' Bride
The Faraway Paladin
Seraph of the End