Mouthless Miss Morita OVA

The protagonist, female high school student Mayu Morita, is the campus and daily life of this silent girl who is always silent. The reason why Morita always doesn't speak is not because she hates talking or really has nothing to say, but because she often thinks about a lot of things before speaking, so she always misses the opportunity to talk with others. Because of this kind of miss, we often make jokes.