Kikoeru?
The only hobby of college student Sakurabashi Itsuki is listening to his favorite radio DJ, Yunokuchi Arata (AKA Juno). They cross paths at the bookstore one day and Itsuki boldly asks Juno to get coffee with him.
Isso Koe ga Nakattara
From Hoshikuzuu Scans:Rokuse, a janitor who struggles with stuttering, meets Takashina. Takashina is a man who is able to skillfully present himself in front of large crowds of people earns him the admiration of Rokuse. While Rokuse nurses a growing love for Takashina, he stutters out a "Th-Th-Th-Th-Th-That's o-o-okay!" to Takashina's offer. What will you do with a top-notch employee and a stuttering janitor? Their story is bound to be rife with communication hurdles.
Motto Hanashi o Shitai no Dakedo.
I'm the type of person who has trouble entering a conversation." Meet our protagonist, a meek, shy guy with no presence who has trouble speaking out. One day, he encounters a handsome but strange guy who seems to have an equally hard time in talking to others, and helps him out of a tight spot. As thanks, the bishounen blushes and hands his saviour some chocolates! Could this be the start of something unexpected for this tongue-tied duo...?
Umeya-kun no Haru