In a world where only a select few can inherit the memories and abilities of their "past" lives, Lou, the third son of the House of Exadan, inherits the memories and abilities of a "Collector." Exiled from his noble house for inheriting a non-combat past life, Lou resolves to travel the world with his maid, Shunon. Though he can never be a warrior, Lou uses his "Collector" ability to gather holy swords, sacred beasts, and rare species. Now begins Lou's journey across the world, where he will forge countless new bonds!