Centuries before….

There was an angel by the name of Hoshitani Yuta. Wearing all white, his white wings small but capable of flight, a halo above his head, and a star wand tied with a ribbon in his hand.

This angel, while still green, once stumbled upon the fallen angel, Otori Itsuki in the rain with sunlight, dancing on an ancient stage. He had heard rumors about this fallen angel, so he knew his name and description, but not much else. Otori wore black with red lining, his large black wings swaying with his body, horns on his head, a red ribbon in his hair, and a devil's tail.

As Hoshitani watched Otori dance in the rain, he was mesmerized by his steps, and how his hair shimmered in rain and sun.

Once the dance was done, they made eye contact.

From then on, they kept seeing each other on that stage every day. However, they knew it couldn't last forever, no matter how much they wanted it to.

On a certain visit, Otori smiles as he pets Hoshitani's head, who smiles back blushing. "Hoshitani… I'm sorry, but we can't see each other anymore," Otori smiles sadly.

Hohsitani frowns, his eyes begging, "What? But-"

"You know demons and angels aren't compatible," Otori tries to reason.

"I know! But still, I want to stay with you!" Hoshitani yells.

"Even if it means becoming a fallen angel?" Otori asks.

"I don't care about that! I love you!" Hoshitani admits.

Otori's eyes soften, hugging him, "I love you too… But, we can't be together. I'm sorry…"

Hoshitani cries in his arms, and they stay like that for a while, for the last time.

"Ne, if we get reincarnated, we'll find each other again, right?" Hoshitani asks a few tears on the corner of his eyes.

Otori smiles, "Of course. I'll definitely find you in the next life, and we'll be together."

"Promise?" he asks, on the verge of crying again.

"Promise," Otori smiles as he gently wipes away his tears.

After that, they never saw each other again.

Centuries later…

It's Halloween night at Ayanagi. Hoshitani is prepared for a night of tricks and treats. He wears an angel costume and adds a star wand tied with a ribbon.

He goes to visit his favorite Senpai, Otori. When he arrives and rings the doorbell, Otori opens the door. He is in a fallen angel/devil costume.

They stare at each other, feeling a strange nostalgia like they saw the other like this before. Suddenly, Otori grabs Hoshitani by the wrist and pulls him inside, locking the door.

They kiss passionately like it's the last time. Panting for air, Hoshitani asks, "What was that for?"

Otori shakes his head, "I don't know. I just had an urge to kiss you. I'm sorry."

"Don't be. And…well… I never said I didn't like it…" Hoshitani admits shyly with a blush.

Otori smiles, kissing him again on the lips. He picks up Hoshitani princess style and they go to the bedroom, the wand being left behind. Putting Hoshitani down on the bed, they kiss once more.

"Trick-or-treat?" Hoshitani asks with a blush.

Otori smiles, "Treat," as he pulls off his red ribbon, tying Hoshitani's arms up.

"I love you Yuta," Otori smiles, which causes Hoshitasni to smile too. "I love you too Itsuki," and they kiss again.

The next morning, they're in bed together, a blanket covering them as they were nude. Otori was embracing Hoshitani while they held hands.

Blinking themselves awake, Hoshitani asks a strange question, "Ne, do you believe in past lives?"

Otori smiles, "Well… I'd like to think they're real, but I'm not sure."

"If we did, I would've been an angel while you would've been a devil or fallen angel…probably," Hoshitani blushes, embarrassed at what he just said.

Otori chuckles, "Yeah… We probably were."

They then decided to sleep a bit more, five more minutes. It turned into five hours, but whatever.