In a world where only a few can inherit the memories and abilities of their "past lives," Low, the third son of the Exadan family, inherits the memories and abilities of a "Collector." Having inherited a non-combat-type past life and being exiled from his current noble family, Low decides to travel the world with his Maid, Shunon. Though he cannot become a warrior, a Story of traveling the world together with various connections collected through his "Collector" ability—Holy Swords, Holy Beasts, rare species—begins now──!