447th G-View: I’ve Been Killing Slimes for 300 Years and Maxed Out My Level

Another isekai centered around a group of lovely ladies. You want me to watch an isekai, that is the best way to get my attention. That or say there is yuri. This one features both. Question is whether it is worth checking out. Let us find out as we take a look at “Ive Been Killing Slimes for 300 Years and Maxed Out My Level”.

300 Years of Slime Killing

Alternate Title: Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita (Japanese)

Genres: Comedy, Fantasy, Isekai, Slice of Life, Yuri

Number of Episodes: 12

G-Rating: 8/10

Plot Summary: Ordinary office lady Azusa Aizawa died due to overwork. For that reason, when she finds herself reborn as an immortal witch with the appearance of a 17-year-old, she decides to live an easy-going life. Her main source of income is collecting magic stones that drop off the slimes that live in the nearby forest and selling them at the nearby village’s guild. After doing this for the last 300 years, she’s unknowingly become a level 99 witch, the most powerful of all.

Azusa's reincarnationThe above plot summary is summed up nicely in the first half of the premiere episode. It also mentioned Azusa passed away due to overwork in her past life. I mention this this early into the review because there are certain episodes that feature depictions of things/events similar to “our” world with themes or messages that hit home to people in the workforce and even fandoms or conventions. Most of the show is about Azusa’s many adventures to various places helping people along the way and of course adding ladies to her family semi harem. We will get to that later.

Best way to describe the show is with one word, fun. Watching “300 Years Killing Slimes” to me felt like watching Kuma Kuma Kuma Bear. That is how I got someone to give it a go. This show has similar vibes. This is no isekai about a reborn human destined to save another world, rather one about a human getting another chance to live a better life than her last and making the best of it.

Azusa ready for battleSure there are some disputes she must qualm and big enemies to overcome once in a while but mostly it is a lighthearted romp with occasional vintage isekai battles, meaning the OP protagonist one hit KOs most of her opponents leaving everyone with their jaws on the floor. The combat remains the least interesting part of most isekai I pick up because most of them feel copy/paste to me. Nothing against the OP protagonists. It is just I have seen this so many times in isekai up to this point I need something extra special to make me care about a battle in shows like these. For viewers who enjoy this setup however, expect to see a lovely witch with a nice balanced body making intimidating foes look like puny New Jersey hobos.

Azusa's FamilyBesides going on cracker jack adventures and expanding her family the other important part of the show is said family. The girls who choose to stay and become part of her life all help make her a better person. Not that she was not a pretty cool and helpful witch already to the local townsfolk the past 3 centuries but the newcomers who join her, some “Nanoha Style” and others through less violent ways, expand her outlook on life, giving her more to care about and live for. The above children for example help show her the wonderful world of motherhood while the redhead is someone I will get to in a bit. Other “relatives” fill roles such as the cool aunt from Toronto or the crazy disaster cousin from Montreal, each showing her the value of spending the rest of her life with other people, basically show her the pros of starting a family. Some minor cons also but mostly pros.

Leviathan transportOf course this being an isekai in a fantasy setting expect to see some cool sights and references to other fantastical things such as the mythological world tree. There are RPG elements but surprisingly not as many as I expected. They were kinda dropped early or not really emphasized much as the show progressed. Fine by me. Not every fantasy isekai needs RPG references.

The presentation is solid. Ladies all look cute and/or sexy, the action is nicely animated and the setting has familiar but nice locales. An isekai with chill vibes needs to show viewers the world characters tout as being pleasant to live in is not just them exaggerating. It should look like a neat world to live in. This show accomplished that. The soundtrack is solid too with a fun OP that kicks in a couple episodes in funny enough. The ED is nice and chill. Oh and some effects voiced by most likely the other characters, such as surprised reactions or breast physics in action, was another nice touch. Some scenes even indicate our heroines may be aware of the voiced sound effects. That or it really is them providing their own sound effects.

Azusa tells Laika to stop workingHalkara lusting for Azusa kissesTime to explain what I meant when I said “family semi harem”. Some of Azusa’s family members would gladly eat her taco if she let them, except her precious children obviously. Her “close enough” future wife, cool aunt from Toronto, crazy disaster lesbian cousin from Ontario, second cousin from Los Angeles, all open to consuming a Level 99 cuisine. Other ladies outside her family also have a craving for witch salad. In particular a certain ruler with a love of pranks. All kinds of cravings from “Please pat my head as I lie on your sweet lap” to “Giveth me thine boobies!”. Heck the reason Azusa got the second life deal was a yurirific one.

Overall “I’ve Been Killing Slimes for 300 Years and Maxed My Level” is a real fun time. Nothing more, nothing less. Vintage OP isekai protag battles aside it is a show full of laughs, some interesting themes and a wonderful protagonist with her family of cuties and hotties. The presentation is nice and the yuri cravings vary from sweetness to “FEED ME!”. Magical good time for all interested, yes.

Speaking of KKKB, I THINK 300 years has less of a “children’s cartoon” vibe to how problems are solved compared to bear jammies girl. Personally did not bother me but some pointed the “simplicity” of the KKKB anime adaptation as a con. This one PROBABLY stuck to the source material more. Ask Rory about that. His gleeful approval and NEED for a second season are indications it did. I would happily accept another one also.

About OG-Man

Yuri and Slice of Life are my anime passion.
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24 Responses to 447th G-View: I’ve Been Killing Slimes for 300 Years and Maxed Out My Level

  1. tbiscut74 says:

    This was a show that I was on the fence about until I heard more about it. I heard good things and read goods things but by the time I decided I wanted to check this series out it was half way done and I didn’t have time to catch up. But then it got dubbed so I’m watching that, and I’m loving it. This is a cute and funny series. Can’t wait to watch the rest when it comes out.

    Liked by 2 people

  2. ArcaJ says:

    Laika’s “OVER 9000!” moe points in the last episode, and everyone’s reactions were hilarious. Could she be an incarnation of the god that sent Azusa there? Screwball theories aside, I loved this show. Could have used a bit more, but I’m all for the Big Gay Family.

    Liked by 2 people

  3. cirno9fan says:

    On the one hand, I REALLY want more of this…on the other, there are some chapters that were very not enjoyable that would probably show up in a season 2. But the good would outweigh the bad. Just, not looking forward to those chapters, unless whoever handles it takes some creative liberties 😉

    Absolutely loved this from start to finish~ It was so great seeing all those stories I read being animated and coming to life. And while I already liked Pecora and Flatorte best, seeing them moving and getting to see them all the time, instead of having to imaginate them, really helped to reinforce why I like those two so much ❤

    Flatorte is the most adorable character, and I don’t get why everyone’s hung up on Laika. It’s a mystery to me, and always has been. But I guess it’s back to that nadeshiko thing. I mean, she’s definitely a great character, I am not saying anything bad irt her, but Flatorte is just more appealing.

    I am really sad that they cut a certain pecora part out. Was very much looking forward to that being animated….ah well. Here’s hoping we get a retcon back of it happening if a season 2 occurs….

    Liked by 2 people

  4. Little Viktoria says:

    Lovely and fun. My second favourite of the season. It’s so nice to see a peaceful anime where there are essentially no bad guys and no sinister politics, and of course to have such a cute yuri family. Laika’s my favourite girl, she’s so precious and gorgeous. I was so happy to see her by Azusa’s side in the end. I also adore Shalsha and Falfa. I wonder how long until they grow up to be young women? If they’re fifty now, maybe twenty or thirty years more? Beelzebub is going to go crazy when they grow up into beautiful, dateable beauties and romantic interests while retaining their full cuteness ^^ Kuku is lovely as well.

    A second season would be wonderful.

    Liked by 2 people

  5. chikorita157 says:

    As expected, this is probably the second most enjoyable show given the light-hearted feeling. I have to admit that the characters are really enjoyable and in some cases, cute. While it’s funny how Halkara provides most of the comic relief, but Shalsha and Falfa is adorable. Of course, Laika is gorgeous and I can’t get enough of her disagreements with Flatorte. Not only that, there are a lot of fun moments.

    But overall, I wouldn’t mind another season if it happens.

    Liked by 2 people

  6. K says:

    I gotta say, everyone rocked in those maid outfits. I loved how the customers couldn’t get enough of the splendid service they got in terms of maids and food. With that said, the way virtually everyone reacted to Laika was…priceless :). Also, Beelzebub and Pecora were really impressive!

    This was a very enjoyable and fun series to watch. Another fave of the season. I would watch more of Azusa’s family life if another season were to be made.

    Liked by 2 people

  7. Mauron says:

    And so my favorite Slime isekai ends its season 1. Season 2 when?

    Beelzebub gets major potential mom-2/Asuza wife points for being the only one willing to help raise her daughters.

    In other Aoi Yuuki voicing gay characters news, Sayonara, My Dear Cramer didn’t undercut the promises of episode 1, but it didn’t build on them either. Rank 5, low intensity in the end. :/

    Liked by 1 person

  8. bearific says:

    yes…feed me more isekai like this one pls.and make it double uwu. one of the reasons i love this anime as well as the source material so much, bcs the family give the world and mc more dynamic.

    feels like they are not just exist to solely be shocked everytime mc does something op, but to also influence the mc and the world building.

    Liked by 1 person

  9. yurimylove says:

    For me, visually pleasing elements such as pretty hairstyles and cute costumes add much to anime’s appeal. In that respect, all the beautiful character designs here are hands down the best aspect of this series for me.

    Liked by 2 people

  10. Somebody says:

    Overall a very good watch and would love a season 2. However I still couldn’t help but feel slightly disappointed with it. Maybe my expectations were too high? Either way 8/10 seems about right. Also I hate when they put in those throw away yuri jokes into shows. I know they mean nothing and are done for comedy but always leave a sour taste in my mouth.

    Liked by 2 people

  11. Kotori_Sonoda says:

    A really fun, feel good show!
    Azusa and her family is so fun to watch, it really puts me in a good mood.

    Liked by 1 person

  12. opaco1234 says:

    Just realize that Asuza family will be forever young, even her kids will stay forever childs

    Liked by 1 person

  13. Nick says:

    Gotta say a big thanks for the recommendation, I wouldn’t have tried this show out otherwise given how much I dislike isekai shows. I really ended up enjoying it, very happy I gave it a shot! Definitely had the KKKB vibes to it, which is probably why I enjoyed it so much. I hope we get another season of it at some point!

    Also, Beelzebub best girl!


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