Ryouma Sakamoto wants everyone to know about his passion for rock 'n' roll, so he roams around town with his electric guitar willing to show anyone he encounters that he's just as skilled as the famous Shinsengumi stars they admire. Unfortunately, Japan doesn't allow anything other than that group's Heaven's Songs, for writing or performing different types of music is forbidden and can lead to harsh consequences. Agitated by these strict rules and brainwashing, Ryouma does everything he can to show people that the music he loves will bring them the freedom they deserve. Along with his bandmates Shinsaku Takasugi and Kogoru Katsura, Ryouma works hard to find places for his rock 'n' roll group to perform. Refusing to back down until their music is accepted in Japan, the trio begin to realize that there's more to their passion than they had thought. [Written by MAL Rewrite]

Episode 0 of Monsuto Anime. It is the first item in the franchise to be completely animated in CG. The big threat is passed, but the gang's still got little threats to handle. The monsters are becoming a part of daily life, but there's one big thing missing: Oragon. One day, a powerful monster appears in the middle of town. It's got Oragon inside!

While sleeping one night, Ryo Utsugi had a nightmare of monsters attacking him. One day he learns a mysterious power to let him hear voices and have visions of girls getting killed, but one night he hears the same voice. (Source: ANN)

Led by scientist Tatsuya Randou, the Randou family undertakes a journey around the globe in order to search out ancient ruins to uncover the legend of Quetzalcoatl, which unlocks the key to a fabulous treasure. However, tailing the Randou family is Gopurin, an evil organisation that covets the legendary treasure for itself. The Randou family has the secret weapon of super robot Acrobunch. It becomes a race around the world of who finds the treasure first. (Source: Wikipedia)