uchi_no_hime-sama_ga_ichiban_kawaii
Uchi no Hime-sama ga Ichiban Kawaii (My Princess Is The Cutest) is a Japanese Card-based RPG for iOS.
In Uchihime, the princesses of the land had been imprisoned into crystals by the Demon King. The player takes the role of a prince who was cursed into an anthropomorphic frog. However, despite being cursed with a seemingly permanent and debilitating transmogrification, the prince can still battle the army of the Demon King. Together with the help of Anna, a fairy who acts as a magical slingshot and a guide, the prince sets course to rescue the captured princesses and defeat the Demon King.
The main storyline revolves around four princesses: Princess Lina, Princess Akane, Princess Sophia, and Princess Lapis.