Kawabe made her junior international debut at 2019 JGP United States, placing fifth. She then improved to fourth at 2019 JGP Croatia. In October 2019, Kawabe won Kinki Regionals ahead of Moa Iwano and Riko Takino before winning Western Sectionals in November ahead of Nana Araki and Hanna Yoshida.[7]
At the 2019–20 Japan Junior Championships, Kawabe led Tomoe Kawabata and Rino Matsuike in the short program by over a point.[7] She then landed her first officially ratified triple Axel in the free skate and completed eight clean triple jumps to take the title over Kawabata and Yoshida by nearly fifteen points.[5] Kawabe told the media afterwards: "This is unbelievable. I didn’t think I could win."[8] As junior national champion, she was named to represent Japan at the 2020 Winter Youth Olympics and the 2020 World Junior Championships.[5] Kawabe was also invited to compete in the senior division at the 2019–20 Japan Championships, alongside the rest of the top six finishers in the junior division.
Kawabe struggled in both the short program and the free skating at 2019–20 Japan Championships to finish thirteenth overall.[2] However, she successfully landed her opening triple Axel in the free skating and said her "satisfaction was about 65%."[9]
Kawabe skated a clean short program to place eighth at the 2020 World Junior Championships but made several mistakes in the free skating to drop to eleventh overall.[11]
2020–2021 season
Kawabe won the silver medal at the Kinki Regional Championship before coming fourth at Western Sectionals.[12] She was assigned to make her senior international debut at the 2020 NHK Trophy, in a Grand Prix field that, due to the COVID-19 pandemic, was attended primarily by Japanese skaters. She was sixth in the short program, falling on her attempted triple Axel.[13] She was sixth in the free skate and overall as well.[14]
Initially, without any Grand Prix assignments, Kawabe was named as a replacement skater at the 2021 Skate Canada International following the withdrawal of Alexia Paganini. She was twelfth of twelve skaters after the short program but was sixth in the free skate and rose to ninth place overall. She landed a triple Axel in the free skate, albeit deemed a quarter short of rotation by the technical panel, obtaining a new personal best in that segment and in total score.[16] Kawabe received a second assignment to the 2021 NHK Trophy, following the injury-related withdrawal of Rika Kihira. Second in the short program with a landed triple Axel, she was fourth in the free skate but remained in second place overall and took the silver medal.[17][18]
At the 2021–22 Japan Championships, Kawabe placed third in the short program, landing a triple Axel in that segment. She was third in the free as well, again landing the triple Axel but with a few other jump errors. The following day she was named to the Japanese Olympic team.[19] In the 2022 Winter Olympicswomen's event short program, Kawabe fell on her triple Axel attempt, scoring 62.69 and placing fifteenth in the segment.[20] An error-riddled free skate saw her drop to twenty-third.[21] She was fifteenth at the 2022 World Championships to end the season.[22]
2022–2023 season
Kawabe began her season with a bronze medal at the 2022 CS U.S. International Figure Skating Classic.[22] On the Grand Prix, she first competed at the 2022 Grand Prix de France, where she finished third in the short program, but dropped to sixth place overall after an error-riddled free skate.[23] At her second event, the 2022 Grand Prix of Espoo, Kawabe was again third in the short program despite a slight under rotation on her triple flip. She indicated that she had been focusing on training her free skate, hoping to avoid "repeating the same mistakes."[24] She managed a season's best score in the free skate, placing second in that second and holding third overall to take the bronze medal.[25][26]
Beginning the season on the Grand Prix at the 2023 Skate America, Kawabe placed eighth after a difficult free skate where she fell twice. She remarked afterward "I have no idea what happened with my jumps."[29] She went on to place ninth at the 2023 Grand Prix of Espoo.[30]