Sakka, Dorei wo Kau.

High school student Yuta bumps into a man outside the train station, injuring him. The man's name is Tsubaki Nishijima, occupation novelist. In exchange for crippling his arm, Tsubaki demands Yuta work like a slave every day! Today's job is to take exact dictation of Tsubaki's words. Whaaat? What's with this perverted depiction of "Come”...!!! Isn't this sexual harassment?

(Source: Digital Manga Publishing)