Ten thousand years ago, the immortal king Muyun was conspired by others for holding the Zhu Xiantu. After ten thousand years of sleep, his remnant soul awakened on the famous "Trash Muyun" of the Southern Cloud Empire of the Heavenly Fate continent.

Five girls came to a training school to become voice actresses holding each thought in her mind. Momoko - she wanted to be a voice actress to meet her favorite voice actor. Rinka - she is an armature voice actress, but she didn't have special purpose to become voice actress. Yurika - she likes anime very much. Tsubasa - she was a girl in love, and acted only as a boy. Amane - she found a deadlock as a actress and tried to find another way. They managed to get over the difficulty to become voice actress although they couldn't perform as main characters yet. There is a love romance with a boy works for an anime company, and you can catch a glimpse of situations of anime industries.

Jungle Emperor was such a hit in Japan, that Dr. Tezuka went ahead and produced a sequel in 1966, known in Japan as "The New Jungle Emperor" or "Onward, Leo!" The trouble (for us in the rest of the world) was that he made the series without having a deal with NBC, and he made it more like his original manga story, which means that there were a lot of characters that died and some of the episodes could be depressing. NBC thought that there was no way they could sell that kind of show, and they were quite happy with the 52 episodes they had, so the New Jungle Emperor series wasn`t seen in this country until 1984, when it was given the title Leo The Lion. This series was supposed to take place a few years after the original Kimba series. Kimba was an adult, with Kitty as his mate, and they had two cubs. Most of all this series was the story of Rune, the male cub, as he grew and learned to be as strong as his father. For legal reasons, the producers of the English-dubbed version could not use the name Kimba, so they used the original Japanese names for all the characters.

When Mizuki Hijiri transferred to a new school, all she wanted was to live a normal school life, but that did not prove to be the case when she met the infamous Hero Club. All of its members are boys suffering from various types of chuunibyou—Yamato Noda is a righteous hero, using his athletic abilities to perform noble deeds and protect others; Kazuhiro Nakamura claims to be the reincarnation of "Touga Ryushouin," the result of the forbidden union between a demon and an angel; Tomoki Takashima is a pretty-boy otaku whose one true love is the 2D anime girl Sora; and Rei Tsukumo plays the role of a schemer, covertly pulling the strings. Dragged along as the newest member of the Hero Club, tepid Hijiri can't obtain the normalcy that she desires. But even so, despite their various quirks, their bonds of friendship are real; Hijiri's life can only get more exciting when she joins in on their delusions of grandeur!