Seirei Gensouki: Spirit Chronicles Season 2

Rio reunites with his bond spirit, Aishia, and former teacher Celia Claire after escaping the Beltrum Kingdom's capital. He encounters people from his past life in Japan in the new world and helps a small group, including his childhood friend Miharu Ayase. This prompts Rio to search for the remaining abductees and consider a way to return them to Japan, all while pursuing his goal of avenging his mother's death.