Kanashii (Itoshii) Kotoba
[From Fantasy Shrine:] After her mother died, Keusuk decided to live alone and move to another school. There he met a pretty peculiar classmate named Kanama, who can not speak. Although the Canama cannot speak, he somehow was able to clearly convey his feelings through the letter and the expression of the face, which forced Kubook more to attract him. However, the cousin Kanama Satoshi noticed the proximity that unfolded between them that he could not approve ... The sweet and fiery history of pure love is unfolding ...