Jun'ichi Aikawa

"Green Sai!"

Jun'ichi Aikawa (相川 純一, Aikawa Jun'ichi) is Green Sai.

Biography
The younger brother of the late Mari Aikawa, Jun'ichi is a rugby player. He calls Tetsuya "Tetsu-chan", looking up to him as an older brother. The youngest member of the team, temporarily leaving high school in order to fight Volt. While impregnated by Vega Zuno, Jun'ichi was fearful of the life inside him to the point of getting an abortion until the unborn Vega Baby pleas for its life and Jun'ichi decides to "give birth," only to lose the child when it is killed by its biological parent, getting a newfound respect for mothers in the process.

Years later, Jun'ichi fought alongside not only his own team, but every single Sentai ranger in existence, against the Empire of Zangyack when it attacked the Earth in the Great Legend War. After fighting against hundreds of Gormin and their Zgormin commanders. Kaijou noticed the fleet moving towards them, he gathered all the Rangers together and gave them the order to sacrifice their powers to wipe out the first invasion's armada. The Green Sai powers are later used by Don Dogoier via the Ranger Keys.

After the Zangyack Empire was defeated by the Gokaigers, Marvelous returned the Ranger Keys to their original owners. Jun'ichi and his teammates have their powers again so they may continue their duties as Liveman. Jun'ichi and his team are set to appear in Kaman Rider x Super Sentai

Mecha

 * Rhino Fire

Arsenal

 * Twin Brace
 * Live Blaster
 * Sai Cutters

Trivia

 * The reason why Aikawa has "Green Sai" instead of "Green Rhino" as his designation name is because, at the time, "Rhino" wasn't a common loanword.