Bruno leads a hard life as a thief, being hunted and fighting every day of his life. Until one day he comes across a giant girl with amnesia. He does not like growing attached to other people, but he would feel bad if he left her alone. He nicknames the giant Azzurra and they set off to get the Divine Treasures, legendary magic objects with strange properties guarded by powerful monsters, to bring her back to the land of the giants so she can regain her memories.