Zirkonia is a classic turn-based tactical RPG (like Fire Emblem and Final Fantasy Tactics) with a lot of character interaction, influenced largely by visual novels and old school rpgs. It’s settled in a dystrophic world, a few centuries before its final doom. Borderlands of the know continent, constantly attacked by an ancient power since the beginning of history, are giving in more and more. Whole countries are breaking away gradually and disappear into the dark gap - an area that surrounds the whole land and devours it bit by bit.
You can teamp up your characters, so they can help each other out and combine their attacks.