when the city of Tokyo in Landa by the devastation caused by an unknown entity that brought a plague of zombies, vampires and other mutated creatures you merged with the National land unit its called TXZ 1 and you are ordered by your very beautiful and strong captain to follow it

The captain's name is Yui Yoshioka who has beautiful red and blue eyes and also has long white hair to his back

he speaks in a soft but cold tone

"Do not be lazy beginners! What's your name?"