High schooler Mutsumi struggles to express herself—so much so that she’s given up on talking altogether. In class, she freezes up and says nothing when the teacher calls on her to read out passages from the textbook. So what happens when an international transfer student who doesn’t speak a word of Japanese sits down at the desk next to hers? If she can't express herself in Japanese, how could she possibly do it in English? But...what if he's the one person who can understand her?