HP Dark Lord Please Feel Free

[Original male protagonist × Tom Riddle] [I haven't read the original work, and I haven't watched all the movies. I have only seen some fan works. They are seriously fictitious and OOC and there is nothing I can do about it! As a capybara, Charles couldn't bear to live as a dolphin, so he might as well live with a rat. But he found his own kind. He is so unique, so different. He was determined to be his most loyal companion. Riddle: You can be my little brother. You have to be obedient. First of all, you have to do whatever I ask you to do. This is the most basic thing. Charles: OK! Riddle: Come, come with me to see if there is anything wrong with that piece of mistletoe. Let's go check it out together! Charles: OK! ! ! Riddle: The bathtub in the prefect's office is quite interesting. Come over here and let's study it together! Charles: OK~ (shy) Riddle: Finally... Charles: OK~~ Riddle, whatever I say, just say it. Charles: You do whatever you want, and I will cooperate~ (excited)