SOIN Profile & Facts SOIN (서인) is a South Korean singer and songwriter who made her solo debut on August 21, 2020 with 곡명재수없는 일기장 (prod. Ethan), a single for the Tone Project (vol. 5). Stage Name: SOIN (서인) Birth Name: Son So-hee (손소희) Birthday: 1999 Zodiac Sign: N/A Height: N/A Weight: N/A Blood Type: N/A Nationality: Korean … Continue reading SOIN Profile & Facts