4Gamer.net just posted this teaser image as well as some high-resolution character sketches related to Falcom's upcoming fighter, Ys vs. Sora no Kiseki. The game will feature characters from the Ys RPG series and presumably characters from the Sora no Kiseki trilogy (The Legend of Heroes VI: Sora no Kiseki, The Legend of Heroes: Sora no Kiseki Second Chapter, and The Legend of Heroes: Sora no Kiseki The 3rd).
The main character in the series (except for Ys Origin). He's a generally nice guy that is good with a sword.
Adol's friend who often accompanies him on his adventures.
A priestess who was saved by Adol. She probably has some feelings for him.
The main female character in Sora no Kiseki. She is known for being tomboyish.
The main male character in Sora no Kiseki. He's an amnesiac with a dark past. He was adopted into the Bright family so he has no blood-relation to Estelle.
Though young, she is very skilled with machinery.