I've Been Killing Slimes for 300 Years and Maxed Out My Level
スライム倒して300年、知らないうちにレベルMAXになってました
We checked 8 streaming services in India on 04 Jun 2026 at 08:47 IST
About
After dying of overwork in the real world, I’m reincarnated as an immortal witch, and I spend 300 years enjoying a relaxing life. At some point, though, I end up at level 99! All those years spent killing slimes to make the money to pay the bills gave me a ton of experience points. Rumors of the level 99 witch spread, and soon I’m up to my ears in curious adventurers, duelist dragons, and even a monster girl calling me her mom! I’ve never been on an adventure, but I’m the strongest in the world… What’s going to happen to my relaxing life?!
Cast
Seasons
Season 1
After many years of being a corporate slave, Azusa Aizawa abruptly passes away due to severe exhaustion. Seemingly headed for the afterlife, she meets a goddess who bestows her with immortality alongside a peaceful life in another world. There, Azusa enjoys her days tending to her farm, protecting the nearby village, and killing about 25 slimes per day—a routine that continues for at least three centuries. However, this rather monotonous cycle begins to change when Azusa suddenly finds out that she has reached level 99—the maximum possible level—from slimes alone. Despite desperately trying to hide this fact in fear of ending her slow life, rumors of her strength spread nevertheless. Soon enough, various people throughout the continent, start to appear at her doorstep—some seeking a battle, others asking for her assistance. Meeting friends and acquaintances who soon become family, Azusa finds she can live a life far better with others than when she was alone.
Season 2
Get ready for more relaxing tales! Azusa Aizawa is a powerful witch who finally reached level 99 and now busies herself with laid-back quests instead. Her family continues to grow as some familiar faces are joined by bright-eyed newcomers. From trips to the beach to a martial arts tournament, you’re invited on Azusa’s carefree and heartwarming adventures of leisure.
Episodes
Season 1
I Maxed Out My Level
Aizawa Azusa, a corporate drone who died of exhaustion from overwork in her previous life, is reincarnated in another world, where she decides to live out a slow and uneventful life forever. But then, 300 years later, she discovers that the experience she earned by defeating slimes every day just to keep up her easy lifestyle has brought her to level 99 and made her the strongest in the world. The rumors begin to spread, and soon trouble comes knocking...
Along Came the Daughters
After becoming the strongest in the world before she even knew it, Azusa entered into a new lifestyle with her first pupil, Laika the dragon, and discovered fun and enjoyment in it that she hadn't known before. But then, one day, a young girl calling Azusa her "mama" shows up and proclaims that her younger sister wants to kill Azusa. But Azusa has no memory of giving birth to these two girls, or of becoming a mother at all...
Along Came an Elf
Just as peace is beginning to reign in Azusa's home, a young elf named Halkara shows up pleading for her help. Halkara says that an energy drink she made angered a terrifying high demon, Beelzebub, who is now out to kill her. Azusa would prefer to avoid anything that might ruin her slow life, but she can't just leave the poor girl to die, so she reluctantly agrees to shelter her...
We Went to a Dragon's Wedding
Laika's older sister Leila is getting married, so Azusa and her friends set off to visit Mount Rokko, the home of the Red Dragons. The mountain is bustling with the many Red Dragons who have gathered for the ceremony. Azusa congratulates Leila and the ceremony carries on in peace... until the Blue Dragons, a tribe with a long-standing grudge against the Red Dragons, attack in full force!
A Ghost Appeared
Halkara has built a new Nutri-Spirit factory in a nearby town and is now regularly going there from the cottage in the highlands, but she comes home exhausted every evening. It seems rumors have spread saying there's a ghost showing up at the factory, so she's had to do all the work alone since all the locals are scared to go there. Azusa doesn't deal well with ghosts at all, but she can't bear to let Halkara work herself to exhaustion, so she summons Beelzebub to help and heads to the factory late at night.
Along Came a Leviathan
Azusa receives an invitation from Beelzebub to attend a ceremony in the land of the demons. It seems she earned a favorable reputation with the demons after stopping the conflict between the two Dragon clans in Laika's homeland. Azusa invites the whole family along for this high honor, but there's one problem: Rosalie, the ghost, can't wear a dress. But Rosalie is part of the family, and Azusa wants to help her dress up like the rest of them, so she uses the power of her maxed level to create a magic spell...
We Beat Up a Demon King
Halkara's knack for inadvertently causing trouble led her to knock out the Demon King Pecora, and now she's locked in a dungeon. As Halkara's execution draws nearer with each passing moment, Azusa rushes to make a potion with her family's help and, with Beelzebub's guidance, takes it to the first-aid room where Pecora is. After tricking the demons guarding the room, Azusa finally reaches Pecora, but then...
A Fake Witch of the Highlands Appeared
Laika and Flatorte, the newest member of the family, are constantly bickering. Their tribes do have a history of conflict, but it seems the fact that they haven't been eating as much meat lately is contributing to their irritability. Just then, Natalie from the guild arrives and tells them about a quest to get rid of a massive number of longhammer boars, the perfect quest to fill their hungry bellies...
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About I've Been Killing Slimes for 300 Years and Maxed Out My Level
After dying of overwork in the real world, I’m reincarnated as an immortal witch, and I spend 300 years enjoying a relaxing life. At some point, though, I end up at level 99! All those years spent killing slimes to make the money to pay the bills gave me a ton of experience points. Rumors of the level 99 witch spread, and soon I’m up to my ears in curious adventurers, duelist dragons, and even a monster girl calling me her mom! I’ve never been on an adventure, but I’m the strongest in the world… What’s going to happen to my relaxing life?! Across 2 seasons and 24 episodes, originally airing on AT-X.
I've Been Killing Slimes for 300 Years and Maxed Out My Level Cast and Characters
The cast features Aoi Yuuki (as Azusa (voice)), Kaede Hondo (as Laika (voice)), Sayaka Senbongi (as Falfa (voice)), Minami Tanaka (as Shalsha (voice)), and Sayaka Harada (as Halkara (voice)). Their performances are a major reason I've Been Killing Slimes for 300 Years and Maxed Out My Level has built such a passionate audience.
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▶ Watch I've Been Killing Slimes for 300 Years and Maxed Out My Level NowWhy People Are Watching I've Been Killing Slimes for 300 Years and Maxed Out My Level
There's a reason I've Been Killing Slimes for 300 Years and Maxed Out My Level keeps showing up on "must-watch" lists. What makes it work is sharp comedic timing that lands consistently and world-building that respects the audience's intelligence. If you enjoy Japanese storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about I've Been Killing Slimes for 300 Years and Maxed Out My Level
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How many episodes does I've Been Killing Slimes for 300 Years and Maxed Out My Level have?
I've Been Killing Slimes for 300 Years and Maxed Out My Level has 24 episodes across 2 seasons. All episodes are available to stream right here on Bowood.TV.
Is I've Been Killing Slimes for 300 Years and Maxed Out My Level good? What's the rating?
I've Been Killing Slimes for 300 Years and Maxed Out My Level holds a 7.9/10 rating based on 235 reviews — well above average.
Who is in the cast of I've Been Killing Slimes for 300 Years and Maxed Out My Level?
The main cast includes Aoi Yuuki, Kaede Hondo, Sayaka Senbongi, and Minami Tanaka, plus a strong supporting ensemble.
Is I've Been Killing Slimes for 300 Years and Maxed Out My Level available in Japanese?
Yes — I've Been Killing Slimes for 300 Years and Maxed Out My Level was originally produced in Japanese and that's the version you'll stream here on Bowood.TV. English subtitles are provided when available.
When was I've Been Killing Slimes for 300 Years and Maxed Out My Level released?
I've Been Killing Slimes for 300 Years and Maxed Out My Level first aired in 2021.
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Frequently Asked Questions
Where can I watch I've Been Killing Slimes for 300 Years and Maxed Out My Level for free?
You can watch I've Been Killing Slimes for 300 Years and Maxed Out My Level online for free on Bowood.TV. All 24 episodes across 2 seasons are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does I've Been Killing Slimes for 300 Years and Maxed Out My Level have?
I've Been Killing Slimes for 300 Years and Maxed Out My Level currently has 2 seasons and a total of 24 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on Bowood.TV and continue watching from where you left off.
What is I've Been Killing Slimes for 300 Years and Maxed Out My Level about?
After dying of overwork in the real world, I’m reincarnated as an immortal witch, and I spend 300 years enjoying a relaxing life. At some point, though, I end up at level 99! All those years spent killing slimes to make the money to pay the bills gave me a ton of experience points. Rumors of the level 99 witch sprea… It belongs to the Animation, Comedy, Sci-Fi & Fantasy genres.
In which language is I've Been Killing Slimes for 300 Years and Maxed Out My Level originally available?
I've Been Killing Slimes for 300 Years and Maxed Out My Level was originally produced in JA. On Bowood.TV the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.
When was I've Been Killing Slimes for 300 Years and Maxed Out My Level first released?
I've Been Killing Slimes for 300 Years and Maxed Out My Level first premiered on April 10, 2021 (2021). The series has since concluded its run.
All Seasons
Browse every season of I've Been Killing Slimes for 300 Years and Maxed Out My Level — 2 seasons in total
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