The Legendary Rebuilding of a World by a Realist Demon King

In a rotted away castle, Ashta awoke as a Demon King.With his ‘wisdom from a past life’, he would rule over his lands as a thorough ‘realist’.«Demon King, why are you attacking the level 1 Heroes?»«Defeat them before they become stronger. That is called strategy.»«Demon King, why are you sending