From MangaHelpers

For his beloved younger sister's treatment, Shinomiya Ryouma is working frantically to raise a billion yen while going to high school. One day, a mysterious woman asks him, "Can you put your life on the line for what you desire?" and after receiving a ticket from her, an accident befalls him! When he wakes up, he finds he's turned into a girl and what's more, he's participating in a "game" where a win means he can reverse his fate but a loss means he'll die instantly! (Euthrosyne)

The kingdom of Commons lies on the large continent to the north called Arcadia. Mitia Commons is the princess of the kingdom and so extremely shy that she has barely even ventured outside of the castle. Now, out of nowhere, her mother, the queen, declares that all Commons must go through a mission in order to become qualified for the throne. The mission requires Mitia to collect 4 powerful stones to complete a staff. By doing so, she will overcome her shyness. She must use a special type of magic that feeds on her embarrassment level along with her friends and bodyguards Sasha and Aty to complete her adventure.
(Source: MangaHelpers)

On the world that consists of a single giant continent called Dokkanon, most people have some kind of special ability. Those who have a high-ranking ability, such as the ability to control water, are respected and granted much power. Those with low-ranking abilities, such as Nana, who controls bananas, and her best friend Ringo, who has super-powerful legs, have very little power in society. When Nana and Ringo were kids, they were awed by stories from Ringo's adventurer father about a land called Oz, where a god lived who could make any wish come true. Nana and Ringo swore that they would go adventuring together when they were adults. But as time went by, Ringo's father vanished while adventuring, and Ringo became much more aware of the social stigma associated with adventurers. Will the two of them find the strength and courage to follow through with their promise?