It's been 4 years since SF9 debuted and y/n has been their no.1 supporter, their no.1 fan and their no.1 friend~ a girl for that matter... But to make matters matters worse y/n loves them all equally- but it's way too much for a guy and a girl to be just friends and there have been times where each of them have made it clear they feel the same way. Love triangles are a struggle but a love decagon... Will SF9 still breathe the air of friendship with love, hurt and betrayal in the air or will they use their face masks from preventing such?