I Saw a Smile

I Saw a Smile summary:

A quiet high school girl, one who could be found anywhere in a public high school named “Sugis.h.i.+ta Kaori”. She became captive to his smile “Oomichi Natsuki”, He was an ikemen, a genius, and a super cool male high school student.
“I want to see his smile again!” For the sake of such a wish Sugis.h.i.+ta Kaori struggles.
Is there a reason why he doesn’t laugh? Watch Kaori do her best for the sake of regaining his smiling face!