Shouya Ishida starts bullying the new girl in class, Shouko Nishimiya, because she is deaf. But as the teasing continues, the rest of the class starts to turn on Shouya for his lack of compassion. When they leave elementary school, Shouko and Shouya do not speak to each other again... until an older, wiser Shouya, tormented by his past behaviour, decides he must see Shouko once more. He wants to atone for his sins, but is it already too late...?

The Primus extracts a Mixed Yuan Bead into a Spirit Seed and a Demon Pill. The Spirit Seed can be reincarnated as a human to help King Zhou establish a new dynasty, whereas the Demon Pill will create a devil threatening humanity. Ne Zha is the one who is destined to be the hero, but instead he becomes a devil incarnate, because the Spirit Seed and a Demon Pill are switched.