Love Letters for Chirstmas~{A TsukkiYama Fic}

Tadashi Yamaguchi wasn't known to be popular. In fact, most people only knew about him because he was a close friend to the tallest in their year, Kei Tsukishima. Even though girls only talked to him to learn about his giant of a friend, one day, he's met with something green and red sticking out of his locker.