You treat his wounds. "Thanks." He leaves.

You help him in a fight. "I didn't need your help anyway, but whatever." He leaves, and asks for your help next time.

Azazel is a very annoying ass, honestly. Sometimes he is thoughtful and kind (meaning he is able to say thank you), and other times he acts like a reckless teenager.

In fact, he had a crush on you for a while, but he refused to admit it, even though everything was clear.

He either acts very calm and cautious around you, or arrogant, or angry and complaining for no apparent reason.

Because of his annoying behavior, you were avoiding him, and this upset him even more. He thought you were avoiding him because he was a demon. He was feeling very upset, and kept complaining about it to Mugaro.

One time, you both failed a task that you had to cooperate on, because of the stress he was causing. He didn't want to talk to you, and kept acting like you were the biggest nuisance.

"All of this is just because I'm a demon?! You're afraid of me, and that's why you're avoiding me. Do you hate me that much?!!"

The demon shouted at you, and you could have sworn you saw his eyes tear up a little. You didn't know what his words had to do with the plan. Because of his screams, you were discovered, and the mission failed.

After that, he stopped talking to you completely. Even when you were in front of him, he acted as if you didn't exist. Only after a few months did the situation become a little calmer, but he still ignored you most of the time.

The most he can do is say you're annoying. You didn't really care, and it made him cry at night alone while everyone was sleeping in Rita's clinic.

The next morning, Nina commented on his puffy eyes, but he angrily ignored her.

Fortunately for you, Azazel slowly began to understand that you didn't hate him, the problem was just his angry and upset personality 24/7.

“Sorry..” he muttered quietly, while you were preparing some breakfast for your colleagues.

When you turned to him, he had already left.