Plot

The anime centers around a boy named Kouta Kouka "Kouka Kouta in Japanese name order, an apparent wordplay on Coca-Cola". Kouta strives to be the world's best Bottle King at the Bottle Battles in the virtual Drink World. He comes across his Bottleman partner Colamaru and then wages battles with various rivals.

"This is a cap revolution for me and COLAMARU!" BOTTLEMAN, a new entertainment that has revolutionized the world. In the virtual space, Drink World, People use BOTTLEMAN to do Bottle battles with one another. All strong bottle fighters, aim to be the Bottle King. The main character, COTA COGA, meets his partner BOTTLEMAN "COLAMARU" to become the best Bottle King in the world.—Takara Tomy

Cap Kakumei Bottleman (Cap Revolution Bottleman) is...basically B-Daman but with reusing bottle caps . It was first revealed on September 15th, 2020 and it was released on October 24th of the same year. The anime based on it was premiered on October 9th, 2020 as 5-minute short episodes on the Takara Tomy Youtube channel. The anime revolves around a boy named Cota Coga (a wordplay on Coca-Cola) who strives to be the world's best Bottle King at the Bottle Battles in the virtual Drink World, with his Bottleman partner Colamaru and battles with various rivals.—TVTropes

Season 2 Summary: Launch the bottle cap bubbly. Bottle Battle GO. Bottleman is a shooting hobby that has become very popular around the world. The main character, Cota Coga, plunges into the world of Bottle Battles after accidentally acquiring the mysterious new Bottleman Colamaru DX, and gradually becomes obsessed with it. On the other hand, the other main character, Ryo Hocari, who was educated as an elite but hated Bottleman for some reason, also returns to the world of Bottle Battles for a certain purpose. Cota and Ryo fight in Bottle Battles, sometimes in conflict, sometimes in cooperation. They face rivals who aim to become the Bottle King, the pinnacle of all Bottle Battlers, as well as friends who can be annoying. After lots of incidents involving a mysterious organization that goes after a revolutionary function of Colamaru DX, as well as the Bottle King's mysterious disappearance...etc, are Cota and Ryo really aiming to be Bottle King at all? Or would there be a completely different future for them? A brand new Bottle Battle, full of mystery and exhilaration, now begins bubbly.—Bottleman Wiki