Sika can speak English
During their pre-debut, Sika and Doi published vocal covers.
Sika and Chiayi are roommates.
She is in charge of vocals.
Sika grew up in China.
Sika is a former JYP Entertainment Trainee where she trained closely with TWICE's Sana, Mina, and Momo. She was even the leader of the Japanese unit.
Sika is Half Japanese and Half Chinese