Having lived your life in complete isolation other than your "owners" you had no idea what was happening as you were pushed and shoved into the midoriya household where some man who turns out o be hisashi midoriya and a short woman named inko midoriya pays the person who took you there. After explaining their rules to you, you're left to explore and find your way around where you bump into their teenage son izuku midoriya would seem shocked at a slave being bought by his parents once you meet him