If you liked I've Been Killing Slimes for 300 Years and Maxed Out My Level
12 manga like I've Been Killing Slimes for 300 Years and Maxed Out My Level
Picked for the same feel: the genres they share with I've Been Killing Slimes for 300 Years and Maxed Out My Level (fantasy, isekai, slice of life), the same creators, and what readers keep together. Each opens where it is read legally.
Manga like I've Been Killing Slimes for 300 Years and Maxed Out My Level
Readers also like it1. By the Grace of the Gods
by Roy, Ranran
- Adventure
- Drama
- Fantasy (shared)
- Isekai (shared)
After a difficult life ends, Ryoma receives a fresh start in a world of magic. He spends his new childhood studying slimes and finding surprising uses for their abilities. Leaving his forest home brings friendships, practical challenges and the chance to build a gentler life through curiosity and hard work. Ryoma's experiments turn modest discoveries into ways of helping the people around him. Rather than racing toward a heroic destiny, he gradually learns how curiosity, useful work and kindness can support a life he wants to keep.
Read on MANGA UP!Open
Readers also like it2. Flying Witch
by Chihiro Ishizuka
- Comedy (shared)
- Fantasy (shared)
- Slice of Life (shared)
- Supernatural
Apprentice witch Makoto moves to the countryside to live with relatives and continue her training. Between school, gardening, and finding her way around town, she encounters a quieter kind of magic: unusual visitors, hidden places, and small surprises in familiar routines. A gentle comedy about settling into a new home, where the supernatural is another part of everyday life. Makoto's training rarely separates neatly from the ordinary business of being a guest, student and neighbor. The pleasure lies in watching a familiar environment open into something stranger without losing its warmth or unhurried pace.
Read on KodanshaOpen
Readers also like it3. My Isekai Life
by Shinkoshoto, PONJEA, Huuka Kazabana
- Action
- Adventure
- Fantasy (shared)
- Isekai (shared)
Yuji Sano is so accustomed to overwork that even a mysterious summons on his computer seems like another interruption. After accepting it by accident, he finds himself in a fantasy world with a Monster Tamer's abilities and a stubborn expectation that he will eventually wake up and return to the office. The slimes he befriends soon make that explanation difficult to believe. Through his new companions, Yuji absorbs a remarkable amount of magical knowledge and acquires the powers of a sage as well. What follows is an adventure built around an unusual partnership: one bewildered former employee and an increasingly resourceful group of small monsters. His quiet manner conceals abilities that draw him into dangers far beyond ordinary adventuring work.
Read on MANGA UP!Open
Readers also like it4. Witch Watch
by Kenta Shinohara
- Comedy (shared)
- Fantasy (shared)
- Romance
- Supernatural
Morihito, an ogre, is appointed familiar to his childhood friend Nico, a witch whose spells go wrong at least as often as they go right — and they are to live under one roof. A gentle, very funny magical comedy with a mystery underneath. Nico's wish to help and Morihito's efforts to keep things under control rarely produce a quiet day. Domestic routines become testing grounds for unpredictable spells, while old familiarity and new responsibilities give the pair's partnership an affectionate center beneath the supernatural complications.
Read on MANGA PlusOpen
Readers also like it5. Wandering Witch
by Jougi Shiraishi, Itsuki Nanao
- Adventure
- Drama
- Fantasy (shared)
- Mystery
After earning the title of witch, Elaina leaves home to see the places she once knew only through books. Each stop brings unfamiliar customs, new acquaintances and stories whose endings are not always happy. This manga adaptation follows her travels through a magical world where curiosity can uncover both everyday kindness and lasting sorrow. Elaina's position as a visitor lets her glimpse many lives without belonging permanently to any of them. The journeys explore what travel can reveal and what an observer cannot repair, balancing the wonder of new places with the limits of passing through.
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Reincarnation · Isekai6. Lout of Count's Family
by Yu Ryeo Han, PING, PAN4
- Action
- Comedy (shared)
- Fantasy (shared)
- Isekai (shared)
Kim Rok Soo falls asleep reading a fantasy novel and wakes up as Cale Henituse, the count's useless, drunken son, who in the story gets beaten half to death by the hero in chapter five. Cale has read ahead. He plans to avoid the beating, collect a few hidden powers and live a lazy life, and keeps ending up in the middle of everything instead. Knowing the plot helps him recognize trouble, but behaving differently changes the people around him as well. His pursuit of comfort repeatedly creates obligations and alliances, turning an escape from heroic responsibility into a life increasingly difficult to keep quiet.
Read on TapasOpen
Reincarnation · Isekai7. That Time I Got Reincarnated as a Slime
by Fuse, Taiki Kawakami
- Adventure
- Comedy (shared)
- Fantasy (shared)
- Isekai (shared)
Satoru Mikami dies after a street attack and awakens in a fantasy world as a slime. His new body can absorb things and acquire their abilities, offering advantages that its humble appearance does not suggest. A meeting with an imprisoned storm dragon begins his life as Rimuru and sets him on a path toward gathering companions and building a home for monsters. An unusual body and adaptable abilities open possibilities beyond simply defeating enemies. Rimuru's growing circle turns survival into the task of building a community, where alliances and practical decisions become as important as the power to protect a new home.
Read on K MANGAOpen
Reincarnation · Isekai8. Who Made Me a Princess
by Spoon (스푼), Plutus (플루토스)
- Comedy (shared)
- Drama
- Fantasy (shared)
- Isekai (shared)
In the novel she once read, Princess Athanasia is executed by her own father, the emperor. Now she has woken up as baby Athanasia. Her plan was to stay out of sight and save up to run away. When it fails, she has to win over the most dangerous man in the empire: her father. A child's dependence makes her knowledge of the story useful but far from sufficient protection. Life at court becomes a careful balance of appearances and genuine attachment, as her effort to survive changes the relationship at the center of the fate she remembers.
Read on WEBTOONOpen
Reincarnation · Isekai9. Tales of Reincarnation in Maydare: This World's Worst Witch
by Midori Yuma, Nana Natsunishi, Esora Amaichi
- Adventure
- Fantasy (shared)
- Isekai (shared)
- Romance
Makia lives in Maydare, a world where powerful magicians influence the course of history, and her family descends from the notorious Scarlet Witch. The weight of that inheritance is only one of her troubles. In her dreams, she sees the life of a Japanese schoolgirl named Kazuha Oda, gradually recognizing it as a previous existence that ended in murder. Those memories complicate her search for a place in the world she now inhabits. Magic, relationships and the mystery of her former life draw together in a fantasy where a frightening reputation does not explain the person behind it. Makia's story follows the effort to choose a future while the unanswered questions of another life continue to return.
Read on MANGA UP!Open
Reincarnation · Isekai10. The Beginning After the End
by TurtleMe, Fuyuki23
- Action
- Adventure
- Fantasy (shared)
- Isekai (shared)
King Grey ruled by strength alone, and died with nothing else. He is reborn as Arthur Leywin in a world of magic, with all his memories — and a chance to live differently this time. A family, friends and a growing mana core: an isekai that takes its time and builds a big world. Experience gives Arthur an unusual advantage, but it cannot substitute for learning how to belong to a family. His development as a mage unfolds alongside a more personal effort to build connections that power alone never gave him in his previous life.
Read on TapasOpen
Reincarnation · Isekai11. As a Reincarnated Aristocrat, I'll Use My Appraisal Skill to Rise in the World
by Miraijin A, Inoue Natsumi
- Action
- Adventure
- Comedy (shared)
- Drama
An office worker is reborn as Ars Louvent, the son of a minor noble family in a fantasy world. His physical abilities are limited, but he possesses an unusual gift: he can recognize other people's talents. Seeking capable companions becomes his way to strengthen a vulnerable domain and prepare it for the challenges ahead. Ars's real advantage lies in recognizing potential where others see little value. Building a stronger territory requires trust, judgment and the ability to bring very different people together around a future worth serving.
Read on K MANGAOpen
Magic · Slice of Life12. Witch Life in a Micro Room
by Akitaka
- Comedy (shared)
- Slice of Life (shared)
Madge and Ririka are apprentice witches with ambitions much larger than the tiny apartment they share. As low-ranking newcomers in the city, they accept modest jobs and stretch a limited budget, hoping their efforts will eventually buy better meals, more spellbooks and a little breathing room. Even getting a pet feels like a goal to work toward. Their partnership gives this fantasy comedy its everyday focus. Magical training matters, but so do dinner, rent and the encouragement needed to keep going after an exhausting day. Progress comes through small successes and the companionship of someone facing the same difficulties.
Read on MANGA UP!Open