Yo-kai Watch Shadowside (妖怪ウォッチ シャドウサイド) is a supernatural anime series produced by OLM. It is the continuation to the 2017 film Yo-kai Watch Shadowside: Oni-ō no Fukkatsu and the successor to the original Yo-kai Watch anime series, originally based on the games created by Level-5. Yōichi Katō returned to officially direct and write the anime alongside new staff. It aired on all TXN Stations in Japan from April 13, 2018 [1][2] to March 29, 2019. It was replaced by the 2019 Yo-kai Watch! anime series as direct sequel in its timeslot.
Just like the movie before it, the anime series takes a darker and more mature approach to the franchise, focusing on story-driven drama and conflict, unlike the original series' comedic and segmented approach.[3]