Ensemble Stars!! Mitsuru Tenma collectible character card.

Ensemble Stars!! is a popular Japanese multimedia franchise that includes a rhythm game, anime series, manga, and stage plays. It centers around a group of male students attending a school for idols, focusing on their training, performances, and interpersonal relationships. The franchise is known for its extensive cast of characters, each with unique personalities and backstories, appealing to a wide audience of fans.

This particular item appears to be a collectible card, possibly from a collaboration event or a merchandise release associated with the game or anime. The character depicted, Mitsuru Tenma, is a known character within the Ensemble Stars!! universe. Such cards are often produced in large quantities and are sought after by fans for collection, trading, or display, contributing to a vibrant secondary market.