Shy FL with unrequited love cdrama

Can someone recommend me cdramas with shy and quiet FL, who has a crush on someone, but she never says it? Like the first few episodes of 'Love can't be said'.  She admires FL from  afar, and it shows their encounters but nothing really happens between them...

Tysm!!

Thank you!❤️

Eternal Love of Dream is super cringey due of this trope.  This FL is a complete pathetic doormat because of her obsession and unrequited crush with the ML.

Her obsession lasted 2000 years before he started noticing her. 

- FL isnt shy.  She basically acts like an airhead for the ML.