In a lifetime,  where a stewardess whose vision is to see the world in all its glory and a rogue princess whose on an escapade for inspiration. 

sana and dahyun were chosen to do a chemistry test on how well they've known each other since trainee days, things don't go as expected.... 

smart girl. sana's an incredibly smart girl but 'rejection' just isn't in her vocabulary. 

sana just wanted to take a bath! 

it's always dangerous to hold onto lingering thoughts of 'what ifs' and 'what could've beens', dahyun thought... but she did nothing to subdue the soft pangs in her chest when she sees her and sana's old date.

Sana fears her slim chance will soon disappear as girls endlessly throw themselves at Dahyun and what's worse is that, Dahyun is oblivious to every little thing. 

nayeon really couldn't believe a purple-haired stunner ruined her own dating spectrum.