Inomata Gorou is the father of Inomata Maria.
Gorou has dark hair and a short trimmed defining mustache. Unlike his daughter, Gorou has sharp defining facial features such as a sharp jaw, slim nose, small slanted eyes, and thin long eyebrows. In chapter 61, he is seen wearing loose fitting turtle neck and has unkempt hair.
In his debut chapter, Gorou initially gives off the impression of being a strict father who would be absorbed in work. However, in the chapter Gorou doesn't appose whenever Maria informs her parents that she would be going out to play in the snow instead of heading to the library to study. In fact, Gorou seemed to be more concerned on whether or not his wife was going to prepare lunch instead.