Rewishia was living the comfortable life of a princess, but felt too sheltered and restricted. After having seen a broadcast of the Bomber Tournament grounds, she snuck out of her father's castle to join the competition.
In Bomberman Quest, Rewishia appears as a secret boss character. She can be faced in Electro Commander's room of Boss Cave 2 after Hurricommander and Mami have been defeated. After adventuring and making friends with the escaped monsters, she challenges Bomberman to a friendly duel. Once the battle has been initiated, the player cannot access the Start menu without leaving the room.
Rewishia moves randomly, placing bombs. She will often jump when a bomb is about to explode. Anyone who is caught in the blasts of her Poison Bombs will receive a slowdown ailment for a short time. Because she has the Teleport Armor, she will warp to a random location on the screen each time she is hit with a blast.
- Rewishia is good friends with Mami.
- The name "Rewishia" likely refers to lewisia, a genus of flowers.