Shiki Takamura hails from Suwa, Nagano, and has a younger brother named Keito Takamura. He debuted as an idol at age 15 within a unit featuring Shu Izumi, Takaaki Mamiya, Rei Sukigawa, Roa Mikaze, and two others. This group soared to national acclaim before Shiki departed due to creative differences over musical direction, leading him to work behind the scenes as a composer. His departure date remains unspecified. Prior to leaving, he first met Rikka Sera when they were 18 and 16 years old respectively. Physically, Shiki possesses light violet hair and matching eyes, standing 178 cm tall. His personality presents a striking contrast: outwardly cool and stoic, yet deeply passionate within. He struggles to verbalize emotions, complicating socialization. This reserved exterior melts away during discussions about music or radio appearances, where he becomes noticeably animated. Diligent and self-critical, he imposes exceptionally high standards on himself, persisting relentlessly until achieving his goals. His perfectionism and singular focus on music frequently trigger intense work binges sustained by brief naps and excessive coffee, often leading to physical collapse. These habits cause concern among his group members and sometimes spark conflicts. Away from work, he exhibits a more relaxed demeanor. In 2015, tasked by Tsukino Talent Production's president with forming a new unit, Shiki was initially doubtful due to past group conflicts. A chance encounter led him to invite Rikka Sera. Later that same evening, after meeting Tsubasa Okui and Dai Murase, all four agreed to form SolidS, with Shiki as leader, producer, and composer—his participation contingent on theirs. SolidS debuted on March 13, 2015. Shiki maintains complex relationships within SolidS. Early interactions with Tsubasa involved frequent clashes fueled by similarly stubborn personalities and Shiki's initial tolerance based solely on recognizing Tsubasa's talent. Over time, both worked to bridge the gap—Shiki improving communication, Tsubasa cultivating patience—evolving into mutual respect and high expectations. Tsubasa frequently teases Shiki about his age and work habits. With Dai Murase, Shiki shares a bond characterized by silent trust. Rikka Sera, whom Shiki met years prior, receives guidance from him, though Rikka often admonishes Shiki's self-destructive tendencies. Beyond SolidS, Shiki retains a friendship with Shu Izumi from their previous unit. Despite Shu's initial distress over his departure, they maintain regular contact through shared interests like soba restaurant outings, though Shu abstains from alcohol during their drinks. Interactions with Takaaki Mamiya are minimal, potentially reflecting unresolved past tensions. As a unit leader, Shiki views Procellarum's leader Shun Shimotsuki as a gentle yet competitive rival, expressing determination not to lose to him. Shiki employs unique nicknames: Rikka is "Mama," Roa Mikaze is "Ofuroan" (a pun on "bathtub" and Roa's name), and Shu is addressed simply by name. Others refer to him variably as "Shiki," "Leader," "Darling," "Producer Takamura," or "Ojii-chan" (primarily by Tsubasa). His surname "Takamura" means "bamboo grove," and his given name "Shiki" combines characters for "intention" and "season." His fanclub is named "FIDES," Latin for "faith." Notable habits include his heavy reliance on coffee during work sessions, exploration of stand-up soba restaurants, and affection for his hometown. His 2021 catchphrase was "Take it easy," contrasting ironically with his work ethic. Additional trivia notes his acquaintance with Kanade Tsukishiro, whose sister managed his former unit, and Dai Kurotsuki, his junior at Tsukino Pro. People online occasionally post sightings of him eating soba, and he is recognized for his unfunny jokes and distinct radio persona.