The color of blood is divided into four parts: library cemetery church armory. Just go to the cemetery of 1BOSS. If you are poor, you will lose a deputy who forgot the orb, which will add damage.

There are two bloody keys in the library. BOSS loses blue equipment.

A BOSS in the armory dropped a blue physical weapon or chain mail on the shoulder.

Church 2BOSS+ a BOSS in the secret room dropped 2 blue clothes 1 green clothes.

FM, it's good to go there. With more equipment, it is easier to brush.