- She formed the singing duo Hikanon together with labelmate Hikaru Koide; the duo performed the song "Smile Invitation" which was used as the theme song to Musekinin Galaxy Tylor.
- In 2014, Takao participated in a voice acting audition held by the publishing company Earth Star Entertainment. She was declared one of the audition's two winners, along with Yuki Nakashima.
- Her older brother Sonosuke is a pianist and composer.
- She learned to play the piano at an early age, and she won an international piano contest held in Milan, Italy, when she was 10 years old.
- She then joined the talent agency Link Plan in September 2018.
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