When he was young, he had failed at the Magic Academy and was looked down by others.
However by chance, he discovered a mythological medicine, so he obtained an immortal body.
In order to get revenge on the people who made fun of him, he began researching magic and magical artifacts different from the academy. After 5000 years of research, he has become an ancient magic user before he noticed.
The people he was seeking revenge were long gone, losing his purpose, Asley went on a journey to see the world after 5000 years with his familiar Pochi.
With an unexpected turn of events after helping many humans, he is now living at the magic academy.
A 5000 year old man with a young appearance Asley, how will he live his second life’s youth?
The Principle of a Philosopher by Eternal Fool "Asley" It is also Known as: 悠久の愚者アズリーの、賢者のすゝめ ―と、ポチの大冒険―, Yuukyuu no Gusha Asley no, Kenja no Susume: to, Pochi no Daibouken, The principle of a philsopher by eternal fool "Asley": The great adventure of Pochi
Genres: Adventure , Action , Fantasy , Fantasy World , Magic , School Life , Seinen
Try our anime quiz: Anime Characters Guessing Quiz/Game
Top 5 Manga Like The Principle of a Philosopher by Eternal Fool "Asley" (Yuukyuu no Gusha Asley no, Kenja no Susume: to, Pochi no Daibouken) [2026 List]
5. Boku no Heya ga Dungeon no Kyuukeijo ni Natteshimatta Ken
Does a two-bedroom apartment in the Tokyo metropolitan area with a rent of 30,000 yen sound too good to be true? Our hero certainly didn't read the fine print. After renting his dream apartment, Tooru quickly realized that the front door of his new home connects to a dungeon. But it isn't all that bad - after he saves a young knight, he quickly learns that his home can also be a rest stop for adventurers.
How My Room Turned Into a Dungeon Rest Area has finished publishing and it has 40 Chapters. It is also Known as: 僕の部屋がダンジョンの休憩所になってしまった件, My Room Has Become a Dungeon’s Rest Area, About My Room Leads to Dungeon, Boku No Heya Ga Danjon no Kyūkeisho Ni Natte Shimatta Ken
4. Risou no Himo Seikatsu
One day, average salaryman Yamai Zenjirou has an out-of-this-world experience, literally! He's pulled from Earth and dragged to another world where magic thrives and a gorgeous, powerful queen needs a consort. Now he's being pressured to marry that very monarch and help her bear a child. Will Zenjirou accept this life of lazy, luxurious love at the cost of leaving his home behind?
The Ideal Sponger Life is currently publishing and has Chapters. It is also Known as: 理想のヒモ生活, A Fantasy Lazy Life, An Ideal Lazy Life
3. No Game No Life
The internet is full of rumors about the Neet and Hikikomori genius gamer siblings Sora and Shiro. The two go as far as to refer to the world as a "shit game", but then one day a young man calling himself "God" summons them to a parallel universe. There, God has forbidden war, and "everything is to be settled with games". Yes, even the national borders. Driven into a corner by other species, the 'human species' is down to its last city. Can Sora and Shiro, these related failures of society, become the saviors of humankind in this parallel world?
No Game, No Life has finished publishing and it has 11 Chapters. It is also Known as: ノーゲーム・ノーライフ, NGNL, Չկա խաղ՝ չկա կյանք
2. Dungeon Meshi
When young adventurer Laios and his company are attacked and soundly thrashed by a dragon deep in a dungeon, the party loses all its money and provisions...and a member! They're eager to go back and save her, but there is just one problem: If they set out with no food or coin to speak of, they're sure to starve on the way! But Laios comes up with a brilliant idea: "Let's eat the monsters!" Slimes, basilisks, and even dragons...none are safe from the appetites of these dungeon-crawling gourmands!
Delicious in Dungeon has finished publishing and it has 97 Chapters. It is also Known as: ダンジョン飯, Dungeon Food, 迷宫饭
1. Made in Abyss
The enormous cave system, known as the Abyss, is the only unexplored place in the world. Nobody knows how deep down goes this titanic pit, inhabited by strange and wondrous creatures and full of mysterious ancient relics which purpose in unknown to modern man. Generations of bold adventurers have been drawn by the cryptic depths of the Abyss. In course of time those bold enough to explore the dangerous pit came to be known as "Cave Raiders."
In Oosu, the town at the edge of the Abyss, there lives a little orphan named Rico, who dreams of becoming as great a cave raider as her mother was and solving the great mystery of the pit. One day exploring the murky depths she stumbles upon a little boy, who turns out to be a robot...
Made in Abyss is currently publishing and has Chapters. It is also Known as: メイドインアビス, Made in Abyss
