[14] Kotomi's highest profile matchup came during K-1 World GP 2020 in Fukuoka, when she was scheduled to fight Kana Morimoto.
[21] During the post-match press conference, Kotomi announced her desire to fight a rematch with Kana Morimoto, for the K-1 Flyweight title.
[22] Kotomi was scheduled to face Rikako Sakurai in a 53 kg catchweight bout at K-1 World GP 2021: Yokohamatsuri on September 20, 2021.
[24] Kotomi was scheduled to challenge the K-1 Women's Flyweight champion Kana Morimoto at K-1 World GP 2022 Japan on February 27, 2022.
[26] Kotomi announced her retirement from all professional competition on August 1, 2023, as she experienced post concussion syndrome after sparring.