Rabbit (formerly known as Mink) is one of the four races that players can spawn with upon joining the game for the first time. It has a 12.5% chance to be granted upon first joining.
This race is widely used as it grants a good speed boost, and is effective in traveling, PvP (particularly when escaping combos), chasing people, and running. This race can be annoying to play against because the Race Awakening's Whirlwind ability has the potential to make people stuck, allowing them to be comboed. However, the increased speed that Rabbit grants when having V4 can be considered excessive when some other races also have similar buffs but have other powerful abilities.
V2 Completing the Alchemist's Quest. To take this quest, the player has to have completed the Colosseum Quest.
V3 Completing arowe's Quest, which varies depending on the race. Rabbit's V3 quest is:
Collect 30 chests.
Make sure to grab the quest every time joining the game, it will reset upon rejoining.
V4 Completing the Temple of Time puzzle, then doing the Trial of Speed.
Full steps can be found over at the Race Awakening page.