Three new HG Gunpla models from Mobile Suit Gundam: The Witch From Mercury appeared in hobby shops in Japan. The models are: CEK-077 Beguir-Pente, CEK-040 Beguir-Beu, and MSJ-121 Demi Trainer. Since these are HG (High Grade) models, you can pose them within reason. All three of these models are 1/144 scale. [Thanks, Hobby Watch!]
All three Mobile Suit Gundam: The Witch From Mercury Gunpla in this release are ones that are mass-production models. The Beguir-Pente is a Grassley Defense Systems model with Antidote weapons. It is also a more advanced model than the Beguir-Beu, which is also a Grassley Defense Systems Mobile Suit. As for the MSJ-121 Demi Trainer, we mostly see students from Asticassia using them. The Gunpla is specifically of the one Chuchu used in the show.
Mobile Suit Gundam: The Witch From Mercury started airing in 2022 as the latest entry in the long-running Mobile Suit Gundam anime series. It follows Suletta Mercury—who is the first female protagonist in a mainline Gundam—who wants to live a normal high school life in Asticassia. There, she meets her fiancee Miorine Rembran. Conflicts within the school generally centered on companies trying to showcase their Mobile Suits to increase their own social or financial standing.
Mobile Suit Gundam: The Witch From Mercury is available for streaming via services such as Crunchyroll. The second season will start airing in April 2023. The HG models of CEK-077 Beguir-Pente, CEK-040 Beguir-Beu, and MSJ-121 Demi Trainer from Mobile Suit Gundam: The Witch From Mercury are all available via hobby shops like Suruga-ya.