Representing the Philippines in karate, she won the gold medal in the women's kumite 50 kg event at the 2022 World Games in Birmingham, United States.

[8] Representing the Philippines, Tsukii won one of the bronze medals in the women's kumite 50 kg event at the 2018 Asian Games held in Jakarta, Indonesia.

[14] In November 2021, Tsukii competed in the women's 50 kg event at the World Karate Championships held in Dubai, United Arab Emirates.

[16][17] Tsukii won the gold medal in the women's kumite 50 kg event of the 2022 World Games held in Birmingham, United States.

Tsukii fought Ruka Sakamoto in the women's 54 kilogram category at the 2024 Deep Jewels Summer Festival in Odaiba, Japan on August 31.

[21] Tsukii cannot speak Tagalog well and learned English while she was in Japan but found her education on the language inadequate which initially made her doubt herself if she is fit to represent the Philippines.