The ML is the Kid who looks like a five year old kid holding an oversize milk bottle and a pacifier in his mouth. He is also the Father of the child in MC's belly.
It because when the virgin MC who never been kiss and never been touch discovered he is pregnant. They are puzzled. The MC is always with them from day to night so who could make him pregnant? They look at each other and all denied the accusation in each other eyes. Lol
I read a few chapters, here's the spoiler Mc is a new student, he just move to dormitory. There are 4 people in one room include Mc. One night Mc has sleep paralyzed, he can't move his body. He feels something pressing his body and he feels naked. After that night, there's nothing weird. But one month later, he go to the doctor and found out he was pregnant. He come back to dormitory. All his roommates say that they're not the father. Then MC say that he is actually Virgin. And all his roommates say they want to be the father. They decide all of them to be a father. Then The four of them go to a bookstore to buy books about pregnancy. Later, there's a child knocks their room and asks about mc. When he saw Mc, he rush to him and hug him say,"wife..." His roommate throw the child out. But he come in through the wall and hug Mc, he say, "oh You're pregnant" everyone surprise cause no one know about him pregnant. Then MC fainted, but ML/the child easily catches him and put him in the bed. The ML take something from his pocket. He take a computer then throw it away, then he continues take something from his pocket until he find a bottle syrup. He give the syrup to Mc. Then there's light and Mc become taller and beautiful. Then MC fart, it's so stink. It makes every mosquitos and flies died.