10-nenbun no Kotaeawase

Nao is afraid of what others think of him and has difficulty talking to others. Up until now, his best friend Keigo, who understands his feelings, would answer for Nao since he's not good at expressing himself. However, Keigo will soon be leaving their hometown. Nao has been thinking, "Keigo says he knows everything I'm thinking, but surely he's not aware of my love for him..." Nao continues to depend on his best friend's kindness and can't muster up the courage to tell him. Then one day, he gets told, "I know how you feel, Nao. This is the last time, so I want you to tell me directly."

(Source: Tokuma Shoten, translated)