school 2015: Who Are You x reader (Another Way) PART 1

Eun byul and Eun bi have another sister? they were triple twins ? She had an amnesia ? Will the fate rewind back or will it change? This book is after the incident of Lee Eun bi and Soo Young. Eun byul and Eun bi still studies at Sekang highschool Mr Kim went back to teach Sekang highschool Soo Young didn't exchange...