In 2011, Tomo Koizumi launched his own brand while attending college. His first fashion show in 2019 was held in New York. The same year, he won the 2019 Fashion Grand Prix Selection Committee Special Award and was selected as part of Business of Fashion (BoF) 500. In 2020, he was selected as one of the LVMH Prize winners. He was in charge of costumes for the national anthem singing at the opening ceremony of the Tokyo Olympics in 2021. In 2021, he won the Mainichi Fashion Award.

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