I, King of All Beasts, Sign a Lifelong Contract With the Dragon Princess

Oh my god, I woke up this morning and my girlfriend was already kissing me all over!

Wait, my girlfriend isn't a strange, beautiful girl with silver hair and red eyes! No, I don't even have a girlfriend!

Why does this person have horns on her head and a huge tail!?

"Great Beast King, I, Ekaterina Alexargon, represent the dragon race in thanking you for your favor. Here, I pledge myself to you in an everlasting contract, never to part!"

"Huh? Is this... a confession? No, a marriage proposal!?"

And then Li Siter was forced to wear a gigantic ring... a dog collar!