[1] Kaiser became inspired to take up figure skating at age seven after watching countrywoman Sarah Meier win the 2011 European Championships.

[1] In the 2021–22 season, Kaiser reached the Swiss national podium for the first time as bronze medalist, and won silver medals internationally at the junior level at the Trophée Métropole Nice and the senior level at the Volvo Open Cup.

[2] Kaiser began the season with three Challenger assignments, coming fourth at both the Nebelhorn and Budapest Trophies and fifth at the 2023 CS Warsaw Cup.

[2] Appearing at the 2024 European Championships in Kaunas, Kaiser set new personal best results in both segments and overall and finished fourth at the competition, 7.57 points back of bronze medalist Nina Pinzarrone of Belgium.

"[3] Her new free skate program that she adopted for the second half of the season included music from The Hunger Games: The Ballad of Songbirds & Snakes, and drew praise from the film's star, Rachel Zegler.