TV-Series
Description
Miroku serves as guild leader while concealing his identity under the alias U. Colin, utilizing a black visor and armored attire. His true appearance features long white hair and heterochromatic eyes displaying all six Battle Spirits attributes: blue, purple, and white in the left eye; green, red, and yellow in the right. As U. Colin, he adopts a green helmet, braided hair with pink accessories, and casual clothing, creating a distinct persona contrast.

Previously allied with Rei and Kiriga, Miroku abandoned them, perceiving personal weakness, and sought greater power alone. This quest led him near death to Nakes the Ophiuchus. In exchange for survival and cosmic-consuming abilities, he pledged to release Nakes' seal. Later assuming guild leadership, Miroku manipulated events to acquire the space compass and locate the Ultimate Battle Spirits. His method involved summoning Reverse 12 Zodiac Braves users like Rukinosu and Denebola from alternate dimensions, then directing a serpentine entity to consume them, empowering Nakes to breach the seal.

His personality blends pragmatic sadism, showing minimal tolerance for failure among subordinates like the Galaxy Triumvirate. He demonstrated calculated cruelty by defeating Hansoro, stealing his memories, and abandoning him in a blizzard. After unsealing Nakes, he dissolved the Guild, retrieved all distributed cards, and destroyed their base. His alliance culminated in a merged entity damaging space, but Nakes betrayed and consumed him. During the confrontation, Kiriga and Rei appealed to his former self, which he initially resisted. The Galaxy Triumvirate intervened, extracting him alongside Rukinosu and Denebola from Nakes.

Following Nakes' defeat, Miroku acknowledged his actions' consequences. He embarked on an interstellar apology journey accompanied by the Triumvirate, shifting focus to locating the newly revealed Ultimate Battle Spirits Neo.

In battle, Miroku employs a multi-color deck emphasizing purple, red, and green cards. His strategy focuses on rapid deployment of low-cost spirits and spells, leveraging cards like The UltimateHeroDragon Ultimate-Yamato and Ultimate-Desperado to enable swift summoning and card-drawing mechanics that overwhelm opponents.