He was most notably eliminated from the All Japan Junior Kick competitions two years in a row by Tenshin Nasukawa,[3] and by Ren Hiramoto in the first round of the 2014 K-1 Koshien tournament.
[4] Asahisa made his professional debut on September 21, 2014, at the age of 16, being scheduled to fight Masachika Morimoto in the quarterfinals of the 2014 J-Fight Next Generation Cup.
Asahisa fought the WPMF Japan Bantamweight champion Teru in the finals and won the fight by unanimous decision.
[6] Asahisa was scheduled to make his second promotional appearance against Chikara Iwao at Krush 54.
[12] Two months later, Asahisa fought Leona Pettas in the tournament semifinals, and lost by a dominant unanimous decision (30-27, 29-27, 29-27).
[16] Asahisa extended his winning streak to three with a dominant unanimous decision victory over Yuzuki Satomi at Krush 91.
Although the fight was closer than their first meeting, Pettas nonetheless won the bout by unanimous decision, eliminating Asahisa in the first round of the tournament.
[19] Asahisa rebounded from his second loss to Pettas with a unanimous decision victory against Naoki Yamamoto at Krush 101.
He won the fight by a second-round knockout, dropping Nishimoto with a left body kick in the last minute of the second round.
[22] Asahisa stepped in on a four days notice to fight the reigning K-1 Lightweight champion Kenta Hayashi at K-1 World GP 2020: K’Festa 3.
Although he failed to score the third knockdown, Asahisa was in control of the remainder of the fight, winning the unanimous decision by a wide margin.
[31] Asahisa was scheduled to fight Hikaru Hasumi at K-1 World GP 2020 Winter's Crucial Bout.
[32] Asahisa was scheduled to fight the reigning K-1 Lightweight champion Gonnapar Weerasakreck at K-1 World GP 2021 in Fukuoka.
[35] Asahisa faced Yuki Yoza in a non-title bout at K-1 World GP 2022 Japan on February 27, 2022.
[39] During a post-fight interview, Asahisa revealed he had suffered a right hand fracture before the bout took place, which was exacerbated in the second round.