Nijisanji's virtual idol Kaede Higuchi has announced that she will sing the yet-titled OP theme song of the forthcoming second season of the TV anime I'm Standing on a Million Lives, which is set to premiere in Japan in July 2021.
She started her online activities in January 2018, then made her major debut as a virtual singer in March 2020, and has released one single and one album. This is her first anime theme song work, and it will be released in the summer of 2021