Monster Strike The Animation Episode 0
English name: Trouble in Monster Strike
Genres: Action, Fantasy
Type: ONA, Episodes: 1
Aired: Jun 22, 2018
Studio: Anima, ILCA, Marza Animation Planet, XFLAG Pictures
Source: Game
Rating: PG - Children
Synopsis:
Oragon lived a lonely life all by himself, until one day he was pulled into a mysterious new dimension. There he learns that an incredibly powerful enemy will attack in six months, destroying his beloved Monster Strike forever! Now Oragon must gather allies in the Strike World to save Monster Strike!

It is animated in full CG unlike its predecessor.

(Source: Official YouTube Channel)