The Demon Prince Goes to the Academy

Academy, Adapted to Manhwa, Alchemy, Alternate World, Antihero Protagonist, Appearance Changes, Battle Academy, Beautiful Female Lead, Calm Protagonist, Caring Protagonist, Character Growth, Cheats, Clever Protagonist, Cold Love Interests, Cross-dressing, Demi-Humans, Demon Lord, Demons, Depictions of Cruelty, Determined Protagonist, Doting Love Interests, Empires, Evil Religions, Family Conflict, Fantasy World, Friends Become Enemies, Game Elements, Gods, Handsome Male Lead, Hard-Working Protagonist, Harsh Training, Hated Protagonist, Heartwarming, Hiding True Identity, Humanoid Protagonist, Jack of All Trades, Kingdom Building, Knights, Kuudere, Love Interest Falls in Love First, Love Rivals, Loyal Subordinates, Magic, Male Protagonist, Manipulative Characters, Misunderstandings, Mob Protagonist, Multiple POV, Nobles, Older Love Interests, Politics, Polygamy, Quirky Characters, Race Change, Reincarnated in Another World, Reincarnation, Religions, Romantic Subplot, Royalty, Schemes And Conspiracies, Secret Organizations, Slow Growth at Start, Slow Romance, Special Abilities, Stoic Characters, Strong Love Interests, Strong to Stronger, Sword And Magic, Sword Wielder, System Administrator, Thriller, Torture, Tragic Past, Transmigration, Tsundere, Unconditional Love, Unique Weapons, Weak to Strong, Writers