This tag is to be used if the appearance of the protagonist ONLY is different from their actual age. This tag can be used to describe the protagonist of a cultivation novel who doesn't age despite being very old, though it is not recommended as it can become a very generic tag. Best to use this tag only if the fact that the appearance is different from actual age is actually used in the story.

Please note that the age mentioned is physical age, and NOT mental age. That might come under the Mature Protagonist tag.
Luke has transmigrated to the United States, but eventually realizes that this United States is different from the United States of his previous life. Here, the superpowers and characters from the movies in his previous life actually exist. How will Luke fare in a world where such terrifying superpowers exist? Fortunately, he has a cheat – the Super Detective System. Join Luke on his new journey toward becoming a detective.
As one of the first players to gain access to World of Falan—the first immersive game worldwide—Roland creates his character as a Mage. However, playing as a Mage is not as fun and easy as he thought. His head even explodes after he casts the very first spell in the game. Stubbornly sticking to his class when most Mages decide to create a new character, Roland gradually discovers tricks of the trade and his unusual talent. This allows him to change people’s stereotypes on Mages and to explore the deeply-buried secrets of this game…
The change that had started in order to rid of a God’s boredom. The diary of Kang Hansoo who had come back in order to save humanity which had been destroyed by this change. --- Ekdud’s Revised Synopsis: Reincarnator is a Korean novel that is quick paced under the genre of reincarnation action fantasy. A novel situated in a world located in another dimension after the original world goes through an apocalypse. A ‘God’ decides to relieve his boredom by creating a whole new world where countless races from numerous worlds and dimensions were poured in, the Abyss. Humans were one of the weakest and most feeble races of all within the Abyss but their potential for growth has helped them survive. Alas, almost all of the last remaining humans have been hunted down by the strongest races of the Abyss, the dragons, and demons. The few remaining members find and reach the Space Time Crystal, an artifact that can send one person back in time. A novel about the main character going back in time to redo everything humankind has done to ensure the survival of their race in the future. This novel actually hits a lot of different genres as it attempts to integrate romance, comedy, gaming, action fantasy, modern fantasy and more. Please give it a chance!
[You have entered the dungeon at Gwachun Station’s 1st Exit.] When former high school student Kang Woojin finds himself returned back to Earth after being forcibly summoned to a foreign planet for 20 years, he soon finds that Earth is not the same, normal place as he once remembered it to be. With his former strength and age reset back to zero, watch Kang Woojin as he gets back on the path to becoming the Earth’s strongest Necromancer!
This is the story of a crazy lich who possesses an internal game system and brings catastrophe to the entire world. “Let’s look at the daily quests today… it’s the damned choose one-of-two-options-type again. Destroy a town with a population of 30,000 people or above; reward: 10,000 evil points. Steal lollipops from 3 children; reward: 1 evil point. If neither of the quests is completed, then 2 points will be deducted.” “Tsk! You think I’m s*upid? If I really destroyed a town, a crusade of Epic-ranked Holy Knights would definitely come hunting me down. Even if I earned the points, there wouldn’t be any life left in me to spend them. I better just go be a kindly lollipop bandit.” I’ve already had enough of being a notorious lich. Who says that a lich can’t be a good person? I’m definitely going to beat this damned system and be an upright and dignified good man.
Invincible fists, unrivaled hammers! Junior Leopard, who traveled through time and space, takes what he earns and does only what he needs to do, never undertaking too much responsibility nor being so chivalrous as to do every good deed. His so-called ambitions from his past life to change the world were cast aside. However, when a forbidden bloodline awakens in his body and his eternal eyes begin to shine once again, he discovers that his iron fists give him the power to force others to follow the truth and to reforge justice! This is a cultivation legend about a modern man that was thrust into an amazing martial arts world.
Seventeen-year-old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside down when he, along with the rest of his class, is summoned to a fantasy world! They’re treated like heroes and tasked with the duty of saving the human race from utter extinction. But what should have been any otaku’s wet dream quickly turns into Hajime’s nightmare? While the rest of his class are blessed with godlike powers, Hajime’s job, Synergist, only has a single transmutation skill. Ridiculed and bullied by his classmates for being weak, he soon finds himself in despair. Will he be able to survive in this dangerous world of monsters and demons with only a glorified blacksmith’s level of strength?
[You have entered the dungeon at Gwachun Station’s 1st Exit.] When former high school student Kang Woojin finds himself returned back to Earth after being forcibly summoned to a foreign planet for 20 years, he soon finds that Earth is not the same, normal place as he once remembered it to be. With his former strength and age reset back to zero, watch Kang Woojin as he gets back on the path to becoming the Earth’s strongest Necromancer!
The Revered Master, Yu Yan, known as the number one in the cultivation world, waited for sixteen thousand years, and finally took in a disciple. He taught her carefully, and took care of her diligently. He watched her as she slowly grew stronger as she comprehended the laws, and just as she was about to soar into prominence… she died! Hence, he once again took in another disciple, carefully taught her, diligently took care of her, and then… she died again! Thus, he took in another disciple, and not long after… she still died! Yu Yan: … Disciple: … (Why do I always get picked up by the same person every time I reincarnate? Haaaa…)