Zundamon TV!

The story of "Zundamon TV!" begins when Zundamon, who has lost her memory, shows up at the home of high school girl Tohoku Zunko. In order to find clues about Zundamon, who remembers nothing but her name, Zunko's younger sister Kiritan suggests uploading a video of Zundamon online. The story follows Zundamon and friends as they work hard to broadcast "Zundamon TV" in an effort to regain her lost memories.
(Source: Natalie, translated)