Kimi ni wa Todokanai.

"No matter how much time we spend together, I’ll never become special to you."
Childhood best friends. Two halves of a whole. The cool, smart one who’s good at almost everything, and his average, dorky friend who struggles to do anything right­—Yamato and Kakeru. Always by the other’s side, but not together in the way they truly want to be. No matter how hard they try, their hearts cannot reach each other… (Source: bato.to)
~~ Adapted from the manga series "Kimi ni wa Todokanai." (君には届かない。) by Mika (みか).