Love is so mad

Female lead - Y/N Male Lead - Hyunjin Second Female/Male lead - Ryujin Male lead sister - Rose Female lead brother - Sunoo Y/N and Hyunjin are madly in love, but Shin Ryujin secretly likes Y/N. now Hyunjin and Ryujin are bffs since they were in kindergarten. Ryujin wants to confess her love to Y/N but she doesn't want...