I've Been Mentally Fighting Against the Strongest Evil Spirit Ever Since Birth (Insane Advantage), so My Magic Power Ended up Going Over the Measurable Limit: The Possessed Child's Modest Path to Supremacy

【爆アド】生まれた直後から最強悪霊と脳内バトルしてたら魔力量が測定可能域を超えてました〜悪憑の子の謙虚な覇道〜