The upcoming series, titled Kaginado, will feature characters from Kanon, Air, Clannad, Little Busters!, Rewrite, and, along with the reveal of an October 2021 broadcast in Japan.
All of the series announced so far have had TV anime adaptations, including Air, Kanon, and Clannad from Kyoto Animation, with Little Busters! from J.C. Staff, and Rewrite from 8-bit.
An official website and Twitter was opened today for the first-ever crossover TV anime series featuring characters from Key’s visual novel series’.