Tales of Symphonia: Ratatosk no Kishi - Onshuu no Richter

Tales of Symphonia: Ratatosk no Kishi - Onshuu no Richter manga summary: Due to natural disasters caused by the world regeneration which took place two years ago. Two researchers, Richter and Aster, are trying to find the spirit Ratatosk who seems to be the only one able of restoring the balance of mana.