TV-Series
Description
Yōtarō Rindō, prince of the fallen planet Aristera and younger brother of Ruka Shinoda, was brought to Earth as an infant by Cronin after Aristera's destruction and his parents' demise. He resides under Border's Tamakoma Branch protection, bearing the surname Rindō for shelter despite no biological relation to Takumi or Yuri Rindō.

His appearance features messy black hair, a red puffy vest with black sleeves, black slacks, white shoes, and a custom helmet with goggles crafted by Reiji Kizaki to shield him during frequent outbursts and fights. Outspoken, childish, and naive, Yōtarō acts impulsively, often sparking conflicts necessitating his helmet. He clings to the belief that his companion Raijinmaru is a dog, though Raijinmaru is a capybara and Aristera's Crown Trigger.

Yōtarō wields high trion (level 7), manifesting as a Side Effect enabling animal communication. Effectiveness varies by an animal's intelligence, yielding simple responses like "yes" or "no" interpreted through their reactions. His combat parameters include low attack (1), defense/support (1), mobility (2), skill (2), and range (1), but higher command (5) and special tactics (3), totaling 22.

Raijinmaru serves as his pet, emotional support, and mount. Yōtarō interacts with Tamakoma members like Jin Yūichi, discussing Hyuse's wish to return to Aftokrator. During Galopoula's invasion, he returned the Lampyris Trigger to Hyuse after Jin entrusted it to him, supporting Hyuse's Tamakoma-2 membership and vowing to respect his desire to return home. Reghindetz of Galopoula later demanded Yōtarō as hostage to aid Hyuse.

Yōtarō enjoys snatching others' snacks, admiring girls, and strolling with Raijinmaru. His name combines "Yō" (陽, "Yang/light/sun"), "Tarō" (太郎, common male suffix), and "Rindō" (林藤, "forest Wisteria"). He originates from Yōtarō Shinoda in the *Talented Elite Jin* one-shot.