(Your point of view)

*one week time skip*

I was walking with Rin and Yukio to their house. Unfortunately, Shiemi has been sick a few days. I suggested making chicken soup, which Rin agreed to for when I go back to the dorms. Rin needed some help with his maths homework and Yukio is "too busy" or something. There's been a black tail on Rin for a week. I think a demon has been playing a prank on him, but I didn't say anything. It's too good to spoil. You go, prank demon! You go! Yukio unlocked the door to the house. "(Y/n), could you get my maths homework from upstairs please? I need to start on the chicken soup," Rin pleaded. I nodded and went upstairs.

When I went into his room, I noticed something long and red by his desk. A sword? I picked it up and undid the cloth. Yep, this is certainly a sword. I unsheated the sword. A wave of heat hit me and I instantly dropped the sword in a panic. There were blue flames roaring from the sword, just like on that day. I heard someone rush up the stairs. They slammed the door open, panting. It was Rin. He was engulfed in the blue flames. His ears were noticeably longer and his teeth were sharper. The blue fire was most prominent on his tail and head, forming two horn-like marks on his forehead. I heard from classmates that blue fire is the sign of the devil. Is Rin the devil!?

I hastily put the sword back in the scabbard and rolled it up in the cloth. "Can we pretend that didn't just happen while I try to process it?" I sheeply asked. He let out a sigh and nodded. I picked up his maths homework and returned downstairs. We joined Yukio at the table. What in the world just happened?

After a few minutes of silence, Yukio said, "Are you two going to sit in silence about that all night or talk about it? I'd talk about it, it'd get solved quicker." He picked up his papers and went up stairs. I was now alone with Rin. It scared me. For once more in my life, I was scared. Rin can't be evil though... can he? He's still a good person, right? Satanic flames shouldn't define him, RIGHT? "I'm not a demon," Rin muttered. I gave him a confused look, signalling I didn't catch it. "I said I'm not a demon!" He shouted. He's not a demon? But the flames... I'm so confused. I'm really confused. Is he a demon or is he not?

"My dad is Satan," Rin mumbled. "I don't see him as my dad. The one I see as my dad was the old man you saw dead in the monastery. He was possesed by Satan and stabbed himself to get rid off him. By then, Satan had already opened the gate to Gehenna. Since my mum was human, I was human up until that point. My powers were being held in the sword. When I opened it..." Rin let out a sigh. "They always said I couldn't go back to being human when I opened it. The only way to close the gate was to draw the sword. I stabbed it into the gate to close it. When I sheathed it, the flames disappeared. But I was left with my ears and tail."

That's a lot to take in right now. He is a good guy. I know he's a good guy. It's not like he was particularly hiding the fact he was half demon. I mean, his ears and tail were on constant display. I guess his classmates already knew and thought I did too. This shouldn't change anything. I'm betting a few classmates became scared of him, for being the son of Satan. I've heard about the blue night and the three that witnessed it. It must of been a whirlwind when the found out he was Satan's son. But... it shouldn't matter. He's a good person. It's not his fault that he was born to Satan. His mum was a human, too. That means Rin has some humanity in him. I shouldn't just hate him because of something he can't control.

Rin slammed his fists into the table with frustration. His whole body was shaking. This must really get to him, huh? "I'm not a demon," he growled. "Those people who said I were... they're wrong." People who said he was? Did people call him a demon when he was younger? I mean he is rough and all. Those people are really mean. You shouldn't call someone a demon because of their personality! That's mean! I'm betting someone else started it too! You know what, I'm not going to make him struggle. I'm not going to make him hate himself for what he is. I'm going to accept him.