Official art of Yoruzuki. Source
夜月: Night Moon
Yoruzuki is the main character of Yume wa Maeyono (ゆめはまえよの). Just like many fangame characters, Yoruzuki lives in a small apartment and refuses to leave.
Yoruzuki has long light blue hair tied back in a high ponytail. He wears a blue shirt along with dark blue-gray pants and red shoes.
While you don't see his eyes in-game, official art by the developers, as well as a close look at his sprites shows that his left eye is dark red and his right dark blue.
Little is known about Yoruzuki's personality, being left to player's speculation.
The speed effect (where you become a cat) along with a world full of cats and cat trees suggests that Yoruzuki is a cat person.
The endings heavily imply that Yoruzuki is very melancholy/depressed despite his dreams not being particularly dark.
Not much is known of Yoruzuki's past as the game is still in an early version.