You are reading The Legend of Rebuilding World by Realist Demon King Chapter 21. In a dilapidated castle, Astaroth awoke as a Demon King. With his ‘wisdom from his 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 se