Description of Rank Up Defence Unit will class change by your tap and defeat an enemy! You can use special ability when unit ranked higher! It will be a victory if it bears to the time limit. By accumulating a gauge, the class change of the ally unDoubLe Fortune its can be carried out temporarily. If a gauge is stored more, a new swordsman unit can be added. Furthermore, if a gauge is stored to the maximum, it will be ranked higher and a new class will be released. A maximum of 15 levels can strengthen. The time limit can be chosen 1 to 15 minutes. It can play to kill time. Please rate this app