Piggymaru

ピギ丸

Piggymaru is the slime companion that Mimori Touka encounters and befriends after leaving the dungeon the goddess sent him to. Mimori found Piggymaru while he was being bullied by other slimes. Seeing Piggymaru struggle and put up a fight reminded Mimori of himself, so he saved him.
Piggymaru has a bright and active personality, always ready to back up his group and sensitive enough to cheer them up when they feel down or to relate to new members. At the start of the series, he felt insecure about himself and tried to be useful to Mimori in order not to be cast aside, but as he spent more time with him and later with his new friends, he learned to trust their friendship. He has also shown to be very brave, following Mimori in very dangerous battles, such as when he faced Civit Garland along with his Black Dragon Knights corps, or when the two faced an army of golden-eyed monsters in order to secure the welfare of their companions.