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Riven Wrangleman is about to plummet into a new, monster-filled (hopefully) peaceful life.F-Rank Foot soldier Riven Wrangleman has been shot out of the known world by humanity's worst enemy.
He falls through the sky, plummeting to his death except... He nullifies Fall Damage with his F-Rank Skill.
Battered, bleeding, and starving, Riven lies on the floor. But the danger isn't over.
A slime approaches.
He would be eaten... Except he isn't.

And so, Riven finds himself in a strange jungle, far from the known world, still alive and breathing. His Skills have been augmented in a shocking turn of events, and he can tame monsters now. Defeated, both physically and mentally, and with no way of making it back to the known world, Riven comes to terms that he is by all means retired.
No more soldiering, it's back to basics.
With his first tamed monsters, an exploring Slime and a giant Spider, Riven sets out to build a home for himself and thrive in this strange land.
Taming monsters, building homes, refining fruits, breeding slimes--erm, wait, no one's supposed to know that last one. Ahem, it's a whole new life for Riven Wrangleman.


Meanwhile, the land's biggest and most beautiful secret waits for someone to come rouse her. Should she return, the world will be forever changed. Riven's world most of all.
A heart-warming, monster-raising life is right around the corner for Riven to take.The F-Rank Foot Soldier Became An S-Rank Monster Rancher is a light-hearted story of new beginnings and new potentials. Follow Riven as he makes the best of his forced retirement, tames monsters, finds friends, and uncovers the mysteries surrounding the world. This series

One guy, multiple love interest elements.SpiceLight Gamelit elements.Retired Protagonist.Monster Girls.Monster TamingCity BuildingInsert ArtAnd a few more surprises.

340 pages, Kindle Edition

Published June 17, 2024

682 people are currently reading
68 people want to read

About the author

Sebastian Guzman

22 books25 followers

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5 stars
293 (58%)
4 stars
113 (22%)
3 stars
59 (11%)
2 stars
26 (5%)
1 star
11 (2%)
Displaying 1 - 28 of 28 reviews
82 reviews
August 8, 2024
Great Start to a New Series

TLDR: Love this story, can’t wait for Volume 3, but a bit disappointed in the author.

Disclosure: Patreon supporter of this author. (See rant below)

Love the story and the explanation of some of the skills, but there are some comments that I personally disagree with. Spoiler Warning

There are 2 Demon Lords present in this book, Mr Demon Lord who shapes MC off page (mostly) and Sexy Statue Demon Lord who I would argue is MCs demon lord despite MDL being referred to as MCs demon lord.

MC appears to be the kind of person who would see monster taming as making monsters his friends not dominating monsters.

Despite these minor issues I love this story overall. Great character building. Great potential. I can see this easily being anywhere from 5-20+ book series. Plenty of potential.

Rant
Love this author enough to be a Patreon supporter, but only found out about this book via suggestions on Kindle. It’s been 9 months since anything has been posted there. It would be nice if the author used it to communicate to those who support him.
Profile Image for Kin Ryo Goldmane.
46 reviews
July 19, 2024
So far so good... But it is only the 1st book.

Everything part of this series shows promise so far even with a the few rare typos scattered about however being that it is only the first book in a series the same can be said of 90% of the Books I have read on Kindle Unlimited which is why I normally wait till at least the 5th volume (15th for manga) before formulating a opinion for review although this one does show a bit more promise than the norm I am used to so that is something however weather or not the author can make the most of said promise or not is something only time will tell.
So Mr Guzman as they say "the ball is in your court now."
Profile Image for Jake.
253 reviews7 followers
November 1, 2024
Interesting but many typos

This book was n't entirely what I was expecting, but it wasn't bad. A decent pace, was entertaining, and seems to be going somewhere. There's certainly enough material, especially right at the end, to continue with the story.

The biggest problem is the number of typos. Whether it's missing words or wrong words, it interrupts the flow and it happens often enough that I dinged the stars for it.

As I said before, the end of the book leaves you thinking there's some interesting plot coming in book 2. I might check it out one day.
Profile Image for Alastair.
22 reviews
March 3, 2026
This book is a refreshing in the harem(?)/vaguely light novel esque/what ever else this is genre. It’s lighthearted and serious at just the right time when it needs to. It’s very feel good and has genuinely deep characters. There is thought put into the MC, love interests, and villain’s actions. The litrpg system aspect doesn’t bog down the story with numbers, which is one aspect that I greatly appreciate.

Definitely one of the better fantasy romance books I’ve read. I’m looking forward to reading the next books.
Profile Image for Unholy Nexus.
36 reviews
January 21, 2025
Something Different

This world is very small for our MC if he’s even in his old world anymore. Book 1 has barely touched on an outside world and the continent the MC is from is most likely gone forever unless plot takes him back. The characters in his life both Humanoid and Monster are extremely interesting. I really hope the story continues to reveal the blossoming friendships he is forming.
Profile Image for Steve.
1,647 reviews63 followers
July 16, 2024
Competently written and some decent characters. It lacks the je ne sais quoi that would clear that 5th star, but this is a pretty decent example of the genre. My biggest peeve: I think the MC's dealings with the Demon Lord are petty and juvenile, something not consistent with the MC's age and experiences. Hopefully he can get over himself in book 2.
Profile Image for Frank Bertino.
1,771 reviews21 followers
July 29, 2024
Entertaining Read

Rivin is a monster tamer who is transported to a mystical isle. Being lonely, he tames monsters who become his friends. He comes across a statue of an extremely beautiful woman who turns out to be an ancient demon lord. He partially awakens her to the point she can talk with him. I like the action, humor, and love. I look forward to the next book.
47 reviews
October 4, 2024
Not a bad first book

This book went by quickly. I liked it because it was different. It was this low ranked guy thrown way out past the known world. He realized he would never make it back to civilization. So, he decided to live his good slow life. But the place he was had other ideas. I kept reading because things kept happening. I am glad book 2 is already out.
567 reviews3 followers
November 21, 2025
I loved the monsters omg this is truly a slow burn 🔥 a little to much talking for i skipped to the spicy scene and died laughing it was hilarious 😂 i have never laughed so hard at a smexy scene it was over the top ridiculous thumbs 👍 up to the author that was a breath of fresh air sadly I lost interest in the rest of the book tho DNF
2 reviews
February 26, 2026
an ok enough book

It’s not quite progression fantasy, not quite Litrpg, not quite Isekai and not really monster girl harem. It’s ok but not great. Some of the descriptions got a little confusing and the cast of monsters grew really fast with no time to introduce the new characters.
1 review
June 23, 2024
Seems passable

In a way, it is an iskeai story where the protagonist ends up in an unknown land. It has potential but i am not sure where it will go. It will be interesting to see how it ends up.
37 reviews
July 4, 2024
So interesting.

Really liked how the characters interacted and had depth. Never really knew what was going to happen next.
Hope there's a sequel soon. Feels like it was going to get really interesting.
32 reviews1 follower
July 14, 2024
had me then you lose me

I was actually enjoying the story pretty well till I got to the dirty part, went from a story telling to straight Spicy as the author put it. Definitely should’ve used a more fitting word to how it was written.
14 reviews
August 18, 2024
enjoyed very much

Can’t wait for the second in this series to be released and find out who the new comers are and if she’s ever released from the stone prison.

Keep up the good work!!!!
Profile Image for Phaedra.
2 reviews
October 2, 2024
Fun Isekai style story with engaging characters who are pretty relatable even the monsters!

This book is a great light hearted read very good for people who like That time I was reincarnated as a slime.
972 reviews2 followers
November 11, 2024
A great start.

I really enjoyed reading this book. It was fun and entertaining. The story and characters were incredibly interesting and engaging. I'm looking forward to seeing what happens next. This book is definitely worth checking out.
12 reviews
February 24, 2025
A great, well paced volume.

I was very surprised and happy with how well the volume was paced. High points, low points, romantic interests, etc etc. Definitely a great read and leaves you wanting more.
36 reviews
September 15, 2025
Fascinating and interesting book

This was an interesting read. Way different from a lot of the Kindle books. A bit like a cross between That Time I Got Reincarnated as a Smile, and Farming Life in Another World. A quick, fun read.
Profile Image for Gritwald.
169 reviews
July 13, 2024
Really great story.

I could not put the book down. The story was very entertaining and made me laugh. I highly recommend reading this story. I can't wait for book 2 to come out.
4 reviews
August 16, 2024
Waiting for more mobster girls and harem elements

Really good book in terms of writing and world building monsters and taming are nice just waiting for romance is the latest factor
33 reviews1 follower
September 7, 2024
Good read!

Easy story with some actual plot build and character growth. This will be a good story to pick up! Waiting to see where this will go.
111 reviews1 follower
September 23, 2024
DNF. Just boring. Could not get into the stilted writing or the uninteresting protagonist. Maybe it gets better when someone else who can talk shows up, but I wasn't sticking around that long.
Profile Image for Jim Phillips.
1,065 reviews4 followers
December 8, 2024
Different

This was unique and not what I expected. Enjoyed the statue . I also extremely enjoyed both epilogue's kind of a nice touch
Profile Image for Genielle Weber.
597 reviews5 followers
December 13, 2024
Very enjoyable

The story was good and I enjoyed the characters. I look forward to the next book. I really hope the series continues for a bit.
2 reviews
July 9, 2025
it was a quick ready but it was a really good read i enjoyed the book a lot
3 reviews
August 29, 2025
good read kept me hooked

Very good character development that kept me reading and wanting more! If you like a level up story this will be for you
2,555 reviews17 followers
January 16, 2025
Ironically, this guy seems kind of slimy. And a bit creepy.
92 reviews3 followers
July 13, 2024
Not Bad, Not Great

I like the MC and his horde of creatures. The slime breeding was fun. Not really getting any harem vibes from this one. The spice scenes that did happen were without romance or passion and were very much for the benefit of the woman remaining youthful. The only real relationship is with a woman who is turned into a statue and it doesn't seem like there was any urgency to try and get her freed. Pretty disappointed on that front to be honest. Maybe I'll give volume 2 a shot if I have nothing better to read at the time.
Displaying 1 - 28 of 28 reviews