Hans is the youngest of three princes serving King Kaiser, marked by his distinctive hair antenna. As royalty, he belongs to the ruling family of Kaiser Castle. When a golden bird steals the king's golden apples, Hans joins his older brothers, Prince Croyler and Prince Walner, in guarding the apple tree. While his brothers fall asleep, Hans remains vigilant, enabling him to witness the golden bird and shoot it with an arrow, successfully retrieving one of its feathers.

King Kaiser then dispatches all three brothers on a quest to find the golden bird. Hans demonstrates earnest dedication to the mission, unlike his siblings. During his journey, he meets Lulu, a talking fox offering guidance. Hans consistently heeds Lulu's advice, forging a cooperative alliance with the fox. This partnership proves crucial in navigating dangers, including evading the tyrannical King Kanematch, who collaborates with the witch responsible for the theft.

Hans's persistence leads him to rescue Princess Roland, daughter of the White Rose King, who searches for her missing brother. His actions help thwart the witch's scheme to conquer multiple kingdoms. Throughout his journey, Hans displays bravery and a willingness to confront dangers directly, engaging in situations requiring sword fighting skills.