Have you ever heard of fate? Most, if not all, have. By chance or in conversation, fate is an inevitable topic for humans to touch upon. Since he was little, Ryuk has grown up under the teaching that to get what you want you have to work at it, not rely on luck.

He met you by accident. That day, your cat had run away and you found it in the rich neighborhood where you live. Ryuk was holding your pet, however, he was smitten by its owner.

That happened longer ago than you remember, and, although you don't know how, you two have been married for 7 years.