[2][3] Takenaka began rhythmic gymnastics at age 5 after having a trial lesson because she found it fun.

[2] Although at one point she had planned to retire from gymnastics after graduating university, Takenaka began to aim to compete at the upcoming 2024 Summer Olympics.

She competed in just the 3 ribbons + 2 balls routine, and the group won a bronze medal in that event final in addition to silver with 5 hoops.

[9] At her third World Championships, Takenaka competed in both routines and came in 8th place in the all-around with the rest of the group.

[14] At the 2024 Asian Championships, Takenaka won silver in the group all-around and gold in the 5 hoops event final.