It's a "pop" and cute everyday anime based on the 4-koma manga featuring the characters from Uma Musume: Pretty Derby.

Ultra B (UB), is a small child from outer space who wears red sunglasses and has a star-shaped mole on his left cheek. It all began when UB's spaceship made an emergency landing in the forest. Lost and alone, UB was found by a young school boy named Michio. He was kind enough to take UB home for shelter, but only to learn that he was no ordinary child... but with supernatural powers! Thankful UB tries to use his special power to help Michio in trouble, but doesn’t mean that it always work out well. Especially, when UB sees a scary black cat, he loses control, and… (Source: TV Asahi)

After the TV station gets acquired by "Nanazon Prime Video," departments that don't get high ratings will be restructured (aka fired). The shooting crew takes on a large-scale plan for their survival. The Banakawa Family was an extremely wealthy family in the Edo period but their gold was hidden somewhere in a cave (that even the surviving members of the Banakawa Family can't find). So the crew's program will feature them exploring the underground world in search of this hidden treasure that so far major TV station networks with big budgets could not find.

In the near future, the sports world is dominated by Neo Wrestling, a new spectacle in which Metal Fighters challenge each other to be named champion. The story follows the girls of the Pretty Four; Miku, Ginko, Sayaka, and Nana, as they face off against the current champions, Team Sapphire. With a burnt out drunk named Eiichi Suo for a coach the girls must not only contend with problems in the arena but also unforseen circumstances that arise in day to day life. Only through protecting their friends, understanding their enemies, and eventually challenging their idol Aquamarine, can Miku and the girls understand Eiichi's purpose and the shady secrets behind Neo Wrestling. (Source: ANN)