Hello there! Summer is here and I wanted to some dramas that are set in summer with cute and fluffly story , kind of like Heartstrings , Liar and his Lover , Sprout...I just want to see cute teenagers falling in love within the summer scope.

Thank you for reading

Bye ^^

@Toots Yup that's exacly what I'm looking for but I have watched that already :( 
Thank anyways 
If movies are okay (I know you asked for dramas) then this one comes to mind:
Kimi ni todoke http://mydramalist.com/124-kimi-ni-todoke

And if you like cute and short fantasy dramas, I'd recommend "Splash splash love" http://mydramalist.com/15550-splash-splash-love
(Everytime I've watched something sad, this is my go-to drama to lift my spirits with cuteness.)
The first drama that came to mind when I read your post was the drama High School-Love On!  This one is super cute.

Others you might want to consider:
Love O2O
Shopping King Louis
Oh My Venus
Something About 1 Percent
The Black Devil and the White Prince
Wolf Girl and the Black Prince
The Greatest Love (a personal favorite)

These are not all high school romances but they definitely fit the fluffy and cute requirement.
A movie tho -  evergreen love
Click Your Heart is another fluffy high school romance you might like