[1] While in primary school, she moved with her mother to Oberstdorf to pursue skating, while her father and older sister remained in Düsseldorf.

[5] After Savchenko gave birth in September 2019 and went on maternity leave, Hatakawa added Florian Just and Niko Ulanovsky to her coaching team.

"[1] Throughout the season, Hatakawa worked with former ice dancer Nelli Zhiganshina on refining her program choreography from Benoît Richaud.

A week later at the 2020 German Championships, she also won silver on the senior level, this time behind Nicole Schott and ahead of Kristina Isaev.

She ended her season at the Bavarian Open, where she placed tenth after the short program in Group I, but withdrew before the free skate.

Hatakawa returned to the junior level at the 2020 NRW Autumn Trophy, where she finished second in both segments to win the silver behind Kimmy Repond of Switzerland and ahead of German teammate Carmen Wolf.

After the 2021 German Championships were relocated, Hatakawa surprisingly prevailed over Olympian and former two-time national champion Nathalie Weinzierl and Dora Hus to win her first national title; reigning champion Nicole Schott was unable to attend the competition due to COVID-related restrictions.