Train as May Esperio in a world where humans and "monster girls" live an uneasy coexistence, and become a monster girl master in strategic, card-based battle with light RPG elements! Throw down with the enemy using your cards’ Skills and Potentials, and give their stats an extra boost with special bonuses. If you play your cards right you’ll collect over 100 monster girls and get to level those ladies up with the First Crush ❤ Rub mode, which gives you a hands-on role in warming them up for battle!