It’s a Gundam from a show about… building plastic Gundam models!
“Mokei Senshi Gunpla Builders Beginning G” is a three-part anime OVA featuring the adventures of rookie Gundam model-builder Haru Irei. Here’s the version of the might Hi-Nu Gundam as it appears in the anime.
Item Size/Weight: 31 x 19 x 8.2 cm / 370g