Just a random theory here could be maybe the professor is obsessed with him(not in an incest way) but like wanting control of his brother because of some fucked up shit the story will say he likely went through with his father growing up or something
Just a random theory here could be maybe the professor is obsessed with him(not in an incest way) but like wanting control of his brother because of some fucked up shit the story will say he likely went through with his father growing up or something