The Fate Of Irnia [Android]

Every 12 years, your homeland faces an onslaught from orcs, and each time, it musters just enough might to mount a defense but never the strength to retaliate. Your father emerged as a champion during the previous assault but tragically succumbed to a mysterious illness on your 17th birthday. His passing left you to care for your mother and sister, alongside a mysterious gift box that he decreed you should open only upon reaching adulthood.
It has been a year since then…