This Rouei model kit is released by Bandai in their 1/144 Gundam Iron Blooded Orphans High Grade series.

The High Grade (HG) is a line of Gunpla in smaller scales such as 1/144, and is designed as an affordable series of model kits for Gundam fans. The moulding was improved and HG (High Grade) level kits were introduced in 1990 to provide better range of motion and greater poseability. Parts are, as usual, pre-colored

Ok, now we knows that Bandai didn't forget the Rouei. I mean, season 2 of IBO came and the Rouei was still missing from the lineup. Anyway, after the release of a whole bunch of kits from season 2, Bandai suddenly goes back to season 1 and release this ground form of the Hyakuri and Hyakuren — the Rouei! Piloted by the popular characters Lafter and Azee, Rouei worked together with the Tekkadan team! The set includes the heavy club (x1) and handgun (x1), so you'll have all the accessories you need to recreate the final battles between Gjallarhorn and Tekkadan! Runner (x6). Foil sticker (x1). Instruction manual (x1).

The STH-05R Rouei (??) is a mobile suit featured in the Mobile Suit Gundam IRON-BLOODED ORPHANS television series. Known pilots include Azee Gurumin, Lafter Frankland, and Hanna.

The Rouei was originally conceived as alternate equipment set for the STH-05 Hyakuren. Teiwaz’s Development Department promoted trial production of the suit, and its first deployment in live combat came when Tekkadan first descended to Earth and Naze Turbine sent out two Rouei to provide support. These two units were converted from Turbine’s Hyakurens, including the STH-05/AC Hyakuren Amida Custom, with the resulting Rouei piloted by Lafter Frankland. This conversion avoided implicating Teiwaz as Hyakuren is often seen as the group's symbol. The two Rouei ended up leaving remarkable ground combat data. Based on that data, the Rouei, which had achieved lighter armor than the Hyakuren, was later officially adopted as a mass production, high mobility machine.