For the first part it starts out with MC finding the Goblin sisters on winter and takes them in. He kind of falls in love with them, seeing them as people who don't know better more like caring for rowdy children then animals. The story is very slice of life as him and the Goblins develop a relationship. They don't speak Common at first, the MC teaches and gets them to speak in broken Common, they shout "Food" when hungry, "Sex" or "Fuck" when horny and say "Asshole" or "Bastard" when mad and say "Sorry" when they do something bad. He has to feed the girls on the floor like dog or cats half because they are too short to eat at the table and he get them to sit still enough to eat food at the table. They also prefer to run around naked, they are wild Goblins and clothing tends get stuck and ripped on branches and fences when they forage for food and hunt out in the field. I have this funny moment in mind where the MC asks the cute born and bred Civilized Goblin girl who works at one of the shops to come back home with him so he can ask her for advice about caring for Wild Goblins. He wasn't sure how to tell her he has basically pet Goblins and tells her once he gets her home. Oh god her reaction of, "You have got to shitting me," and getting a little pissed and irritated because Civilized Goblins don't like to think about Wild Goblins and tells him, "I can't help you with monkeys!". After about a year the MC finds out about his sister and friend being enslaved, So him and his Goblin pet girlfriends things go off to hunt the Half Orc. And the slice of life stuff get mixed with some on the road adventure.