Tasuku Ryuenji is one of the characters featured in the anime adaptation of Future Card Buddyfight. He is a 7th grader at Aibo Academy. He is also a member of the Buddy Police, a crime-fighting group that protects the world from anyone who abuses the otherworldly powers of the monsters with his buddy Jackknife Dragon, he also hands out Core Deck Cases to people who draw Buddy Rares. His and Jackknife Dragon's buddy skill, Sky Circle, gives him the ability to fly. His core gadget is called "Star Pulser."

He tracks Gao Mikado and recognizes him as a buddyfighter after drawing a Buddy Rare, Gao later challenges him to a Buddyfight.