Takiren functions as both a musician robot and gravekeeper in the Otomushi Forest on planet Musica. He maintains the graves of the deceased Musika masters, guardians of the memorial sites preserving the memory of their lost civilization. Upon meeting Nobita and his companions, Takiren openly weeps, expressing profound grief over the loss of his master, demonstrating his deep attachment to the Musika people. He attributes his sorrow to the planetary cataclysm that destroyed Musica. Takiren later explains that the Fare Hall of Fame served as a lifeboat, evacuating the few surviving Musika people and robots, with Mikka being the only known Musika survivor within the Hall.

Takiren also knows that Capek concealed the full truth of Musica's destruction and the fate of its people to protect Mikka from pain. He shares this information with Nobita's group, providing crucial context for their mission and the Hall's history. Takiren's emotional state shifts due to Nobita's intervention. Moved by Nobita's sincere recorder performance expressing shared sorrow, Takiren finds solace through this musical connection. This heals his grief, allowing him to regain composure and join the group's efforts to restore the Hall of Fame and confront the threat to Earth.