Episode 9

TL;DR

Cain meets Yuuya, the first king of Esfort and now the God of Creation, who reveals that Cain must train to defeat Aaron, an evil god responsible for chaos 300 years ago and now on the brink of returning. In Yuuya’s new world, Cain undergoes grueling training, battling monsters and leveling up while befriending a holy beast named Haku, who helps him regain his resolve. Meanwhile, Sylvia, Telestia, and Silk worry about his absence. As Cain grows stronger, he learns about Aaron's dark past and his connection to Cain’s parents, who sacrificed themselves to seal Aaron. Determined to protect those he loves, Cain completes his training and returns home with Haku, a baby dragon, and a special sword for the king. Reunited with Sylvia, Telestia, and Silk, Cain is deeply moved by their support and the warm welcome awaiting him.

Recap

Cain meets Yuuya Terra Hirasawa Esfort, the first king of Esfort and now the God of Creation, who reveals that Cain must train to defeat Aaron, an evil god responsible for sowing chaos 300 years ago and now on the verge of returning. Despite Cain's initial confusion and reluctance, Yuuya transports them to the ocean and assigns him rigorous training. Forbidden from using teleportation and starting at a low level, Cain battles monsters and gradually grows stronger. Along the way, he befriends and heals an injured holy beast, Haku, who becomes his companion and restores his motivation. Meanwhile, in Cain’s world, his absence worries Sylvia, Telestia, and Silk, who try to distract themselves by preparing desserts for his return.

After years of grueling training, Cain reaches Yuuya's mansion and begins further honing his skills under Derain, a powerful instructor. During his training, Cain learns that Aaron was once a god in Cain’s world who turned it into a deadly game, resulting in his banishment. Yuuya reveals Aaron’s connection to Kazuya’s parents, Seiya and Megumi Shiina, who were summoned to defeat him. A flashback shows Kazuya’s parents sacrificing themselves to seal Aaron, leaving Yuuya to honor their legacy. Driven by his parents’ memory and his desire to protect others, Cain defeats Derain in a final duel, completing his training.

Returning to Yuuya’s mansion, Cain visits his parents’ graves and expresses gratitude to Yuuya for looking after them. Having aged in the five years in Yuuya’s world, Yuuya changes Cain’s appearance to look as he did originally before returning Cain to his world with a baby dragon he formed a contract with, Haku, and a sword to deliver to the king. Welcomed home by Sylvia, Telestia, and Silk, Cain shares the cookies they made, moved to tears by their kindness and the warmth of being reunited.