Uzumaki Obitodai 21St Book

Accidentally traveled to Xiao Shui, an elder of the declining Xiao family, and awakened the protagonist's ancient grandfather with the same ring. He thought he could live a peaceful life fishing, but in the end when the Soul Clan was born, he had to take the protagonist Xiao Yan back to the ancient eight clans period to save the Dou Qi Continent.