March 7th is a vampire hunter travelling with the Astral Express. Though she knows very little of her past, March has decided to commit herself to learning more through travelling and taking down the undead monsters that plague the various worlds that the Express visits.

"I won't let you get away!"

...This sure was rotten luck. One second, you were sucking the blood out of a corpse, and the next, this loud girl with a bow & arrow was chasing you down.