Disclaimer and all that: I don't own Durarara or the song from vocaloid "Alluring Secret Black Vow" which this fic is based on. This will be Tsugaru/Izaya and will have weird opinions about heaven and angels. Seika is fem!Psyche if you wonder.

There are possible basic English mistakes. If you notice, feel free to tell me. I don't bite. If all that is okay with you then enjoy reading.

Love between an angel and a human was forbidden. Usually, humans didn't see angels so even if an angel had a crush on human, his love would remain one sided and unrequited for eternity.

However both Tsugaru and Izaya wasn't the usual case. Nobody knew why, but Izaya had the ability to see angels, and Tsugaru didn't let that knowledge go to waste.

Izaya was the first human he fell in love with, but he wasn't his first love. No, Tsugaru had been with some angels before he met the dark haired human.

For example Seika. She was an angel too, and one that loved him too. However Tsugaru wasn't enough for her, so she took anyone who wanted her right then.

They were in a relationship for six years, but when Tsugaru found out about her cheating on him, he felt deeply dissapointed and left the sky.

It was then he went to the human world for the first time. He wandered – or rather flied trough the fields of rice and the humans he passed by seemed to not notice him. When the night came, he was lucky enough to find a garden with a weeping willow and a bench under it.

Tsugaru decided to spend the night there. If humans didn't notice him, then surely nobody would kick him out from that bench.

The next day he was awaken by a voice from outside of the willow. To Tsugaru it sounded like a rough melody of harp. He wondered if that human would be able to see him.

When Izaya entered the area under the willow, he didn't seem to notice the angel. The boy seemed happy, because he smiled and his red eyes shone like the finest ruby.

"You see, I never knew that sun could shine trough those branches so gracefully. I could have spent the rest of my life here. Unfortunately, I can't because today afternoon I have the piano classes. But I'll be sure to come here tomorrow. Heh, as if I could ever write such a thing." the black haired boy said it and then looked at the sky.

To Tsugaru, it seemed like that human was the most beautiful thing in the world. So he came there every day after that day.

"Hey, don't you think that Tsugaru is spending too much time in the world of the living?"

"Yeah, that's probably because of Seika. She can't handle being with one person so she did cheat on him."

"But doesn't Tsugaru seem a little bit happier than usual? Normally when a guy is heartbroken he'd feel down and not talk, but Tsugaru has very carefree attitude lately. Talks a lot too."

"Don't tell me... maybe he fell in love with a human?"

"No. That's forbidden. He can't. And even if he did, the human wouldn't notice him. Ever."

The rumors did spread around the heaven very fast, but Tsugaru didn't pay any attention to it. He waited for the time when the dark haired boy would come to the garden and talk about his problems. He liked to listen to him even if he couldn't do much about it.

(Thank you for reading. Reviews would be nice.)