Steins;Gate 0: Valentine's of Crystal Polymorphism -Bittersweet Intermedio- is a oVA anime that premiered in winter 2019, produced by WHITE FOX.

About the production: the story comes from an original script, there is 1 episode of about 24 minutes and its current status is "finished".

Its main genres are comedy and sci-fi, with themes such as Food, Cosplay, Female Protagonist and Mixed Gender Harem.

On AniList, Steins;Gate 0: Valentine's of Crystal Polymorphism -Bittersweet Intermedio- has an average score of 72%, a good score, and appears on 39,203 users' lists.

Unaired episode included with the volume 6 BD/DVD release of Steins;Gate 0. A special day approaches during a lull in the chaos. It's that time of year to give chocolate to the ones you love, but not everyone finds that an easy task. With Valentine's Day just around the corner, the girls of the Future Gadget Lab discover that Kagari has never celebrated the occasion before! Determined to make this year's holiday the best one yet, they all set out to make delicious homemade chocolates together. However, with many of their quirks causing kitchen disasters, this may prove to be too hard a task. Will their feelings ever reach those of their heart's desire?

Official synopsis from AniList.