episode #4 (The First Encounter)
Not long after Shindu and Ryoma started to look for the exit, they already met a group of monsters (a pack of three frostbite wolves). The pack of wolves started to attack Shindu, but Ryoma protected him. Ryoma fights the pack of frostbite wolves by himself while protecting Shindu. While Ryoma is overwhelmed by the number of wolves and their hit-and-run tactics, Shindu thinks of a solution and asks Ryoma to focus only on a particular wolf to slay it. Ryoma successfully slew a frostbite wolf, and Shindu immediately made a doll of the frostbite wolf and engraved it with the soul he collected. After the engraving, he ordered the frostbite wolf to fight with Ryoma and gave it the name Ryozu. Ryoma, Ryozu, and Shindu repeated the tactics they used to slay the two remaining enemies while gaining an ally. Shindu gain a level after defeating the remaining wolves and gain the skill "Cursed Ball of Fire" (compatible with fire-type monsters).
Shindu thought of an amazing idea and tried to engrave the curse ball of fire skill in Ryoma, and after that, Ryoma became capable of spitting a ball of fire with curse energy on it.
Shindu created two wooden frostbite wolf dolls, engraved them with the souls he collected, and named the two frostbite wolves Ryoka and Ryota.