The is a nation west of the Clover Kingdom whose people adapted to the country's strong natural mana to create unique magic and use a ranking system called Magic Stages with Stage Zero at the top and Stage Nine at the bottom. The country has developed a magic technique called . This technique uses runes formed with natural mana to cast "arrays," which give instructions to spells, such as "pursue" or "grow," or focus this natural mana to create the real element. For example, Lightning Magic becomes True Lightning Magic, and creates real lightning. The Heart Kingdom is ruled and protected by a line of queens who use water magic and formed a pact with the water spirit , the current queen being who entered an alliance with the Clover Kingdom to invade the Spade Kingdom after being inflicted with a curse by Megicula that will kill her within a year's time.
