The SOUL series is a collection of right-based NFTs, as an integral part of the SERAPH world, holding abundant benefits in the forthcoming future, reflecting the long-lasting creativity of the SERAPH IP. It mainly features human heroes such as Barbarians, Valkyries, Sorceresses, Necromancers, along with a few Angels, Demons, and otherworldly races, showcasing the many story characters developed in the game so far.