Technology & Combat Characteristics
The Beargguy F (Family) consists of a white-colored Beargguy II named the Mamagguy (also known as Mama-Beargguy ) with a small, detachable, cyan-colored Petit'GGuy (also known as Petit-Beargguy). The Mamagguy is built by Mirai Kamiki with help from Yuuma Kousaka, and despite it being Mirai's first Gunpla, it has a high degree of completeness. The Petit'GGuy is a present from Yuuma.
Between the two units, the Mamagguy is the main machine and it is armed with beam sabers in its arms, while the Petit'gguy is the sub machine and has no weaponry. Despite this, Petit'GGuy actually serves as Beargguy F's ace in the hole during battle. When the Mamagguy is unable to battle, the Petit'GGuy can take over and continue the fight using martial arts.
As the Mamagguy inherits the Beargguy II's amphibious characteristics, it also has an underwater propulsion system in its feet. Although the Petit'GGuy lacks any underwater propulsion system, it can move across water surface using a bubble. Thanks to the LCD monitor in its face, Mamagguy can change its eye expression mid-battle like the Beargguy III. The Petit'GGuy can also do the same.
History
Mirai was selected as her modelling agency's representative for the "Tokyo Gunpla Collection", an event that fuses Gunpla and fashion. As she never built Gunpla before, she seeked help from her brother, Sekai Kamiki, and his friends, Yuuma Kousaka and Fumina Hoshino. Yuuma jumped at the chance and the next day, he accompanied Mirai to shop for Gunpla, where she eventually settled on a Beargguy II. With help from Yuuma, Mirai built a custom, white-colored Beargguy II. Yuuma later gifted her the Petit'GGuy, calling it cute and an ace in the hole, and with this, the Beargguy F was created.
During the event, Mirai's beauty attracted TAKU, leader of the popular rock band, SGOK III. He asked her out on a date, and Sekai agreed on his sister's behalf on the condition that he wins the event's highlight, the Gunpla Rally, a racing competition between the modelling agencies using Gunpla. Sekai was shocked when TAKU agreed readily, while Mirai was freaked out. Not long after the Gunpla Rally started, Mirai's Beargguy F easily took the lead, thanks to her special training with Sekai the night before. Dangling a date with him as a reward, TAKU got some of the other models to stop Mirai's Beargguy F. Due to the vicious attacks, the Beargguy F was thrown into the water, but due to its amphibious ability, this suited it just fine.
TAKU's WD-M01 ∀ Gundam TAKU Custom caught up to the Beargguy F at the sandbar and the two engaged in close combat. TAKU switch to ranged attacks using the beam rifle and tried to take out the Petit'GGuy, but the Mamagguy sacrificed itself to save the little Gunpla. As Mamagguy fell, Mirai's control of the Gunpla was switched to the Petit'GGuy, and with it, she fended off TAKU's Gunpla. Angered by TAKU's action, Mirai then executed the Soten Guren-Ken using the Petit'GGuy and defeated the celebrity. Mirai continued on with the Gunpla Rally, but the Petit'GGuy tripped just before the finish line and another model's Gunpla was able to claim victory.
Sometime later, Mirai and her Beargguy F were present during the Battle Royale to decide whether Minato Sakai or Yuuma should be the winner of the Open Course section of the Meijin Cup, an artistic Gunpla competition.