After the Immortal Took His Little Fox Wife to Reincarnate as a Group

With lifetimes of experience behind him, he had only just ascended to immortality when he was sent back down to be reborn. Reborn as a little prince, he was chased all over the palace by his imperial brothers, while also having to raise the reincarnated spirit fox he had coaxed into following him to the mortal world, feeding and cleaning up after it. He deeply regretted it. The spirit fox had entered the mortal world to trade true feelings with the spirit serpent and reclaim the inner core that had been stolen from it. The reincarnated spirit serpent could have lived as a wealthy young master, but instead chose to become his servant disciple. It offered its heart to the spirit fox, but the spirit fox gave its heart to him. He never expected it, either... He would fall in love with her.