The Regressed Demon Lord is Kind

Tags: Adventurers, Age Regression, Antihero Protagonist, Appearance Different from Actual Age, Aristocracy, Assassins, Beast Companions, Beautiful Female Lead, Calm Protagonist, Charismatic Protagonist, Clever Protagonist, Cold Protagonist, Comedic Undertone, Complex Family Relationships, Cunning Protagonist, Demon Lord, Elemental Magic, Elves, Enemies Become Allies, Evil Gods, Evil Organizations, Evil Religions, Fallen Nobility, Family Conflict, Fanaticism, Fantasy World, Former Hero, Genius Protagonist, Gods, Handsome Male Lead, Heroes, Kingdoms, Knights, Lack of Common Sense, Late Romance, Lost Civilizations, Love Interest Falls in Love First, Loyal Subordinates, Magic, Magic Beasts, Magical Technology, Male Protagonist, Master-Servant Relationship, Mind Control, Monsters, Multiple POV, Multiple Reincarnated Individuals, Multiple Timelines, Mystery Solving, Narcissistic Protagonist, Nobles, Overpowered Protagonist, Past Plays a Big Role, Personality Changes, Playful Protagonist, Power Couple, Previous Life Talent, Priestesses, Priests, Proactive Protagonist, Protagonist Strong from the Start, Religions, Ruthless Protagonist, Sadistic Characters, Saints, Schemes And Conspiracies, Second Chance, Secret Organizations, Servants, Shameless Protagonist, Sharp-tongued Characters, Slow Romance, Spatial Manipulation, Strong Love Interests, Strong to Stronger, Succubus, Sudden Strength Gain, Sword And Magic, Sword Wielder, Time Travel, Torture, Twisted Personality, Underestimated Protagonist, Vampires, Werebeasts, Witches, World Travel, World Tree