Take a Gander at This! The Hero is a Goose?

Bulka, a young Orc who lives in the Mossy Boulder Tribe, is about to become an adventurer in the post-apocalyptic fantasy world of Mangle. On the day of her sixteenth birthday, she is given a mysterious gift by her late foster father to prove herself to the village of less intimidating races. With this ancient power she can summon the most promising theif-class hero ever to exist. When the moment comes for her to bring forth the hero from another world, what she finds herself with is a...goose?