"Shinken Blue!~Ikenami Ryunosuke!"
"The Same! Blue! Ikenami Ryunosuke!"
"Super Shinken Blue! Going Forth!"
Ryunosuke Ikenami (池波 流ノ介 Ikenami Ryūnosuke) is Shinken Blue (シンケンブルー Shinken Burū) of the Shinkengers. He is a very devoted young man who dreamed of becoming a kabuki actor instead of a vassal for the Shiba House like his ancestors before him.
Since childhood, Ryunosuke was raised by his father to be a vassal to the Shiba clan. Though a loner, he is completely dedicated to his role as Takeru's vassal even scheduling out his day with intense training. Should he make a mistake in front of his lord, Ryunosuke will discipline himself severely; he once stood under a public fountain for doubting Takeru. Proving he had great knowledge of the Origami even before learning how to properly use them (including creating a combination prior to learning the proper formation of Shinken-Oh from Takeru), Ryunosuke became the engineer behind many of the Samurai Combinations, figuring out how to combine the Origami into Tenkuu Shinken-Oh and later into Samurai-Haoh. Out of all of the vassals, he is most at odds with Genta, who he once called a "wannabe" samurai. Out of all the vassals, Ryunosuke is probably the closest in terms of skill to Takeru, arguably equal to him sometimes. As such, Ryunosuke is typically the one to lead the other vassals in Takeru's absence. He also praises Chiaki well noting his ability to improvise in case pure skill isn't enough to win. This, combined with Ryunosuke's skill, allows both of them to work well in tandem. His swordsmanship skill is at least equal to Takeru's, to the point of delivering the final blow to kill Dokoku Chimatsuri's first life with the disk of Kaoru Shiba's Mojikara.
Goseiger vs. Shinkenger
Months after wiping out the last of the Gedoushu, Ryunosuke 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. Akarenger 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.
Farewell Space Pirates
After the defeat of Ackdos Gill, Captain Marvelous returned all the Ranger Keys to the former Sentai heroes. It is assumed Ryunosuke and his teammates received their keys allowing for them to utilize their powers once again.
Zyuohger vs. Ninninger
Shinken Blue appeared with his team among the first 38 Super Sentai whom collectively empowered Wild Tousai Shuriken King in its fight against the titanic Gillmarda, granting the Ninningers and Zyuohgers the power to perform the Zyuoh Ninnin Super Sentai Burst which destroyed Gillmarda with the combined power of all 40 Super Sentai.
Chou Super Hero Taisen
- Kevin (Power Rangers) - Power Rangers counterpart in Power Rangers Samurai & Power Rangers Super Samurai.