[11] Anpo was scheduled to fight against Hiroshi Mizumachi at K-1 World GP 2017 Lightweight Championship Tournament on February 25, 2017.
[12] Anpo was scheduled to fight Wang Zhiwei the Wu Lin Feng 2017: China VS Europe event on April 1, 2017.
His four-fight winning streak was snapped by Gonnapar Weerasakreck at K-1 World GP 2018: 2nd Featherweight Championship Tournament on June 17, 2018.
[15] Anpo was scheduled to face Kenta Hayashi at K-1 World GP 2018: inaugural Cruiserweight Championship Tournament on September 24, 2018.
[21] Anpo was scheduled to fight the former Krush Lightweight champion Daizo Sasaki at K-1 World GP 2019: K'FESTA 2 on March 10, 2019.
[27] The immediate rematch was scheduled six months after their first fight, at K-1 World GP 2019 Japan: ～Women's Flyweight Championship Tournament～ on December 28, 2019.
[30] Anpo was scheduled to make his second title defense against Fukashi Mizutani at K-1: K'Festa 3 on March 22, 2020.
A second weigh-in was held half an hour later, with Anpo successfully making weight after he had removed his clothes.
[33] During the post-fight press conference, Anpo claimed he was considering a move up in weight, although he wanted to defend his title against Hideaki Yamazaki first.
[34] Anpo was scheduled to make his third title defense against Hideaki Yamazaki at K-1 World GP 2020 in Osaka on September 22, 2020.
The tournament was organized to crown a new champion, as the title was left vacant following the retirement of Yuta Kubo.
Soares was quickly knocked down a second time with a left hook, which resulted in an automatic technical knockout victory for Anpo, due to the rules of the tournament.
[44] Anpo faced Riki Matsuoka in the tournament semifinals, who had earned his place there with a second-round technical knockout of Maki Dwansonpong.
Anpo appeared to have won the first two rounds on the judges scorecards, but his output and movement were both crippled due to Noiri's calf kicks and body shots.
Noiri completely took over the third round, and knocked Anpo down three times with body shots, which resulted in a technical knockout victory for him.
[47] Anpo won the fight by a first-round technical knockout, after successfully knocking Kaito down three times before the two minute mark of the opening round.
[50] Anpo faced the reigning RISE Super Lightweight Championship Kosei Yamada at THE MATCH 2022 on June 19, 2022.
[53] Anpo faced K-1 heavyweight veteran Cyril Abidi, who returned to the sport following a 16-year retirement, in an openweight exhibition bout at Breaking Down 7 on February 19, 2023.
[55] Anpo faced the two-time K-1 MAX champion Buakaw Banchamek in a super welterweight (-70 kg) bout at Rizin 42 on May 6, 2023.
[61] Anpo faced former Krush and K-1 welterweight (-67.5 kg) champion Yuta Kubo in a special rules bout at Rizin 45 on December 31, 2023.