The Benkei was present at the Gunpla festival held before the 7th Gunpla Battle World Championship finals and won a Gunpla battle against a ZMT-S33S Gottrlatan.
Benkei in Gundam Build Fighters
Original contest entry
Notes & Trivia
In the real world, the Benkei was the winning Gunpla design created by a builder named Astron for the Gundam Breaker division entry.
The Gunpla's parts include the weapons and legs of the Astray Red Frame Kai, the chest and arms of God Gundam, the head of the Geara Doga, the Sazabi's Beam Shot Rifle and the weapons of the Destiny Gundam.