Choujuu Sentai Liveman is the twelfth entry of Toei Company’s Super Sentai television series. It aired from February 27, 1988 to February 18, 1989 for 49 episodes. Its international English title as listed by Toei is simply Liveman.
It was the first Super Sentai Series that introduced animal-based mecha. It was also the first Super Sentai Series that introduced a super-combined robot (that is two robots put together) as well the last Super Sentai Series that had its mechas transported to the battle through a flying fortress.
Academia Island is an elite school that various genius students from across the globe attend. Among them are Yusuke Amamiya, Joh Ohara, Megumi Misaki, who with Takuji Yano, and Mari Aikawa sought to create a suit strong enough for space exploration. However, three of their classmates and dear friends, Kenji Tsukigata, Rui Senda, and Goh Omura, felt their talents are being wasted and leave to join an evil organization called Volt where offers them to raise their full scientific potential. As a result, when Yusuke and company saw them leaving, Kenji draws a gun on the three with Takuji and Mari taking the fatal blow. Soon after, one of the professors at the school, Professor Hoshi, pitches in to help Yusuke and his friends complete the suits so they can serve to prepare against Volt.
And then in 1988, the present day, with that Kenji, Rui, and Gou now known as Doctors Kemp, Mazenda, and Obular, Volt begins its attack by devastating Academia Island. As a result, Yusuke, Joh, and Megumi take up the suits they created and become the Livemen to battle against their former classmates and Volt. Though they managed to get Goh to leave Volt, the organization recruits new members in Doctor Ashura and the aliens Guildos and Butchy. Soon after, the Livemen are joined by Tetsuya and Jun-ichi, the respective younger brothers of Takuji and Mari, while learning that there is a darker agenda behind Volt that only its leader Bias knows.