On 180315 "Celuv TV", Doyeon (IOI/Weki Meki) said that her brother would probably put Sana's photo in his army locker, not hers. Maybe he's ONCE and his bias is Sana? XD

Earlier, in ISAC 2018, Sana also sit with the three IOI members Doyeon, Kyulkyung (PRISTINE) and Chaeyeon (DIA). I'm glad our girl is so friendly~