He was a student at Ayaha High School before enrolling at Doshisha University in 2021, where he currently studies in the Faculty of Sports and Health Science.[6]
Honda began figure skating in 2011. His first encounter with skating was in kindergarten. It wasn't until the second grade of elementary school, where he entered a class taught by coach Tsuyako Yamashita and began skating in earnest. He was then coached by Kotoe Nagasawa.[4]
Due to the COVID-19 pandemic, a large number of modifications were made to the Grand Prix structure. The competitors consisted only of skaters from the home country, skaters already training in the host nation, and skaters assigned to that event for geographic reason.[11] As a result, Honda was selected compete at the 2020 NHK Trophy, where he won the bronze medal.[2]
Honda started the season by competing at the 2021 CS Cup of Austria, where he won the silver medal.[2]
Despite the Japan Skating Federation not allowing Japanese figure skaters to compete on the Junior Grand Prix series due to the COVID-19 pandemic. Honda was nevertheless selected as a "wildcard" entry to compete at the 2021–22 Junior Grand Prix Final set to be held in Osaka, Japan. However, the Final ultimately ended up being cancelled due to the ongoing pandemic.[12][13]
In early 2023, Honda decided to give try pair skating at the insistence of his mother.[14] It was later announced in May that Honda had teamed up with fellow Kinoshita Academy singles skater, Sae Shimizu, and that the pair would continue training under their singles skating coach, Mie Hamada, while also making trips to Oakville, Ontario, Canada to work with Bruno Marcotte and Brian Shales, the coaches of World Champions, Riku Miura/Ryuichi Kihara.[15][6][16]
The pair made their debut at the 2023 Japan Eastern Sectional Championships, which they won, before going on to also win the 2023–24 Japan Junior Championships.[17]
Honda also competed in the men's singles event at the 2023–24 Japan Championships, where he finished a career-best tenth place. After the event, he announced his retirement from singles skating with the intention to focus on pair skating.[9][18]
Shimizu/Honda were selected to compete at the 2024 World Junior Championships on the condition that they earn the minimum technical element scores to compete.[19] Competing at the 2024 Bavarian Open, the pair finished eleventh, earning these minimum scores in the process.[20] Going on to compete at the World Junior Championships, the pair placed fourteenth.[17]