Spoilers
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After reading the raws there is no doubt in my mind that either the pretty boy knows the girl in the pink dress OR the girl in the pink dress is going to come back and be a plot point. We've seen her in like 4 different flashbacks and she is the whole reason he changed into a handsome boy and jump-started his inferiority complex. I bet the pink dress girl is his older sister or smthn crazy like that
waaaaiiiiiit who did he choose at the end???!!!!
Shige, I think.. Hehe. Errr hoping there's more.