世界樹の魔物使い 異種族娘と征く魔境ダンジョン冒険録, Sekaiju no Mamono Tusukai Ishuzoku Musume to Seiku Makyou Dungeon Boukenroku, Demon Tamer Of World Tree, 世界樹の魔物使い 異種族娘と征く魔境ダンジョン冒険録, Demon Tamer Of World Tree
Because of its size, the World Tree is a gigantic tree where each branch contains a different ecology and environment.This is a story about Sou, a demon tamer swordsman, who goes on a journey in search of the ``Fruit of Immortality,'' which is said to grow somewhere in the World Tree.