Rule one of harboring a secret crush: never get your hopes up. Especially if your crush is the nicest person you’ve ever seen. Yeonu’s kind, thoughtful, and gentle—everything that Gyu-yeong wants his significant other to be. The problem is that Yeonu’s nice to everyone, not just Gyu-yeong. Gyu-yeong knows that he’s not special to Yeonu, but sometimes he wants to give in to the little voice in his heart. Maybe all of this does mean something; maybe Yeonu thinks that he’s special, and maybe Gyu-yeong will be allowed to build his hopes up, just this once.

Original Webtoon:
Bomtoon, Lezhin, MrBlue, BookCube, Comico, Onestory, Nate

Official Translations:
English: S1, S2
Japanese

Note: S1 is All Ages, while S2 is rated Mature. Lezhin US split the series onto separate webpages, calling S2 "Don't Build My Hopes Up - Extended".