Different as Night and Day

(I haven't read too much of the series yet, but I want to TT_TT Curse you anime for having so many hot men! Anyways, this explains the nature of Taiyō and Getsu's relationship, though I'm revealing nothing about their creator until I feel the time is right. Please excuse my inexperience at the series...)

Chapter One - The Bright Sun and the Dark Moon
A dark figure wound up two dolls. One had dark blue hair with silver streaks, the other had gold-blonde hair.

"Now, awaken, Getsu and Taiyō," the dark figure ordered.

The two dolls opened their eyes. The one with dark hair had dark blue eyes, the other had sky blue.

"Who are you?" the darker one asked.

"I merely found you. You two are dolls, named Getsu and Taiyō, and you must become Alice," the unknown person ordered.

The two dolls nodded.

"Good. Now, I will watch from afar, and I want both of you to make me proud. You will not be allies the moment either of you threatens your opposite's medium or familiar," the person reminded, taking their leave.

Getsu and Taiyō stared at a wall for a while until everything sank in.

"Who was he?" Taiyō wondered.

"I'm not sure, but he knew our names," Getsu responded.

Taiyō sighed, unsatisfied.

"Well, I'm going to go and see what's going on around town. Good luck becoming Alice, Getsu," the blonde doll decided, heading outside.

Getsu merely stared at a wall, looking emo.