Cassmire: The Loyal Sword

Description

To save her younger sister Aria from her illness, Cassmire Crisis became a mercenary, wielding a sword and shedding blood to pay for her medicine. But when Cassmire suffers a fall one day, memories of her past life as Aria’s wicked stepsister come flooding back. Rather than take up the role of villainess again, Cassmire vows to protect Aria this time. But with Aria doomed by the story to face only hardships, Cassmire must pick up her weapon once more to become her sister’s loyal sword!

Original Webtoon:
Daum, KakaoPage

Official Translations:
English, S.Chinese, T.Chinese, German, Japanese, Thai

Type

Manhwa

Related Series

Cassmire: The Loyal Sword (Novel) (Adapted From)

Associated Names

Aus Treue zu meiner Schwester

Chungjikan Geomi Doeryeo Haenneunde

Cố Gắng Trờ Thành Một Thanh Kiếm Trung Thành

I Tried to Be a Loyal Sword

I Tried to Be Her Loyal Sword

I Was Planning to Become a Loyal Sword

Kashmire, la virtuose de l'épée

Kashmire, la virtuose de l’épée

Loyal Sword

Me convertí en la espada fiel

Nguyện Là Thanh Kiếm Trung Thành Bảo Vệ Em

Trate de ser una espada fiel

Tôi sẽ cố gắng bảo vệ em gái

Би үнэнч сэлэмчин байх хичээсэн

Я всего лишь хотела стать верным мечом

Я всього лиш хотіла стати вірним мечем

حاولت أن أكون سيفها الوفي

ฉันแค่อยากเป็นจอมดาบผู้ภักดี

妹妹的守護劍

忠実な剣になろうとしただけなのに

我只想成为忠诚之剑

护爱之剑

本想成为忠诚的剑

충직한 검이 되려 했는데

충직한 검이 되려했는데

Groups Scanlating

Snowy Scans

Zero Scans (Discord)

Latest Release(s)

c.54-57 by Zero Scans (Discord) & Snowy Scans 1 year ago

c.52-53 by Zero Scans (Discord) & Snowy Scans 2 years ago

c.50-51 by Zero Scans (Discord) & Snowy Scans 2 years ago

Search for all releases of this series

Status in Country of Origin

106 Chapters (Ongoing)

S1: 42 Chapters (1-42)
S2: 31 Chapters (43-73)
S3: 33 Chapters (Ongoing) 74~

Completely Scanlated?

Anime Start/End Chapter

N/A

User Reviews

N/A

Forum

0 topics, 0 posts

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User Rating

Average: 7.6 / 10.0 (102 votes)

Bayesian Average: 7.3 / 10.0

30%

17%

11%

18%

Last Updated

April 22nd, 2025 12:47am PDT - 5 days ago

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Genre

Action Comedy Fantasy Josei Romance
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Categories

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Category Recommendations

I Became the Young Villain's Sister-in-Law

My Sister's Happy Ending

Resigning as the Villainess

Duchess's Lo-Fi Coffeehouse

The Onion Villainess

Recommendations

N/A

Author(s)

See-on [Add]

Sumda [Add]

Artist(s)

ilye

Year

2022

Original Publisher

Daon

Daum

Kakao

Serialized In (magazine)

Kakaopage (Kakao)

Kakao Webtoon (Daum)

Licensed (in English)

Yes

English Publisher

Tapas

Activity Stats (vs. other series)

Weekly Pos #633

(-64)

Monthly Pos #1083

(-314)

3 Month Pos #1726

(+51)

6 Month Pos #1845

(+114)

Year Pos #1891

(+141)

List Stats

On 612 reading lists

On 198 wish lists

On 10 completed lists

On 37 unfinished lists

On 214 custom lists

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Forum Posts Click to view the forum

User Comments [ Order by usefulness ]

The isekai and harem troupes ruin it

by Utsukushii Yume
4 months ago

Rating: 4.0 / 10.0

The premise for the story is interesting, and I want to say it is all pretty good until after she enters the dukes mansion, after that the story devolves into the bad isekai and haram troupes, corsets = evil, the FL knows the future even if the future has changed, every character is a cheerleader to the FL and they have no personality outside of loving her, and no job outside of becoming good enough for her, etc.

Its not the worst I have read, its just disappointing since it started out interesting and the author put in all this backstory for all these characters and it isn't there to flush out characters but its only there to show the audience how important the FL is, just in case you couldn't tell from the amount of cheerleaders she has.

For example the FL's sister, instead of her getting a character arc that allows her to gain a family within her sisters family, we are left with the harem troupe of a siscon. No one in the family, as of chapter 80, likes anyone except the FL, it is such a waste.

Even the FL's older brother only exist so the author can say the FL, "as a women" is far more suitable to be head of the family instead of her you know genius brother.

This is right up there with the shounen isekai harems where all the girls are desperate to be the ML's slave girl and none of them have a personality outside of pleasing the ML.

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On the fence

by DhariaCole
11 months ago

Rating: 5.0 / 10.0

I originally liked the story, but the MCs clueless regarding all the men in love with her is irritating. Putting this on the shelf for now. I might pick it up again later.

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Extremely tropey, but entertaining

by Y_Sasuke
1 year ago

Rating: 6.5 / 10.0

TL;DR: Not great, but passes the time.

This series is very tropey, basically almost every cliche of the genre is present. The reverse harem candidates are all children she saved on different occasions in the past. The laziest of backgrounds possible, times 4.

The FL is dense and friend zones everyone all the time, it is just dumb, because harems have to be dumb. I don't even want to spend time thinking about the MLs because clearly the author didn't bother.

The family dynamic is also a cliche at this point, but it is amusing and wholesome.

The art is pretty good and does a lot of heavy lifting.

One exception to the tropey nature of the series is the FL is not an amazing sword master that looks like a dainty flower. She is battle scarred and has a reasonable figure, dresses elegantly, but comfortably. Etc. She is still a Marry Sue, but a cooler looking one.

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the reverse harem just destroy everything

by naafx8
1 year ago

Rating: 1.0 / 10.0

so stupid, it's regrettable since it has good potential.

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Hot damn, this is baaad

by The Last Melody
1 year ago

Rating: 2.5 / 10.0

If there is one thing you can trust Korean authors to do 90% of the time, its to take a good premise and shit cliches all over it, like what was done here.

The only two things that are good in this is the sister and the fact that she doesn't wear dresses. That's it.

Now, the bad stuff. Theres just, so much of it. The Reverse Harem is basic as all hell, the potential mLs adhere almost perfectly to cliches we've all seen 80 times before (I wish I was exaggerating...), the FL's intelligence varies by what would be the most convenient to introduce the next cliche. Like, absolutely no way someone with that little brainpower managed to become a veteran mercenary through a secret identity and not get caught... I could keep ranting, but I really can't be bothered. I just wanna finish writing this review and forget that this webtoon ever existed.

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Love it. Strong FL.

by ciel_bleu
2 years ago

Rating: 10.0 / 10.0

I love how strong the FL is. She truly loves her sister and has gone through a lot to provide for her. I found it to be a very touching relationship. Her relationship with her Father was also done well. The only thing I'm a little unhappy about is the fact that all the MLs fall for her. I was hoping we'd get to see Aria get some love too.

People complaining about how they've written a male character and just swapped the gender, aren't really paying attention. It's explained that her strength is due to her Mana stores and she lacks the endurance of a man. It's a vital point that her father seeks to rectify later. And the fact is that she's defying society's expectations by her clothing and her way of life, she's even faced flak for it, but had some powerful supporters to push her way through.

I think she has a really fun personality and her confidence is like a breath of fresh air in OI genre where FLs are always second guessing themselves.

... Last updated 2 years ago

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Good, good read. Yes.

by iRokus
2 years ago

Rating: N/A

Main cast is good. Funny and good art.

Screw the other reviews. Just read it. Most people will enjoy it.

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This should have been yaoi/Boy's Love

by TiredandDeadInside
2 years ago

Rating: N/A

Writing Tip: Never, ever write a female character like a male but change the pronouns and/or "just write us like a normal person!" (Usually said by well meaning, frustrated women.)

Uh, no. 99.9% of the time the person thinking/saying this has their baseline normal set as "straighter than a ruler" and "male". It's often unconscious, too. (Even after becoming aware of this insidious bias, they'll still fall into the trap of this way of thinking.) Because you'll get into messes like this.

It seriously reads like a (very badly written) yaoi harem Isekai. Like, the writer actually DID write yaoi but wanted to make it less controversial and more "appealing" to the masses by turning the MC into a woman WITHOUT the tedious process of changing the other story elements that would have made this flow so, so, so much better.

The whole changing gender BS is really hard to pull off correctly. The writer for the story doesn't have an interesting enough world building, cast and what frankly reads like personal willingness to pull it off.

Too bad. They'd rather keep the muuuuch safer lesbian baiting in there than gay baiting, if the MC was made male. It's still offensive and queer baiting all around but ugh, like this, it's sliiiiiightly less so. I'm disappointed.

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In short

by connectedwizzard
3 years ago

Rating: 1.0 / 10.0

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Bad

by PZcolo
3 years ago

Rating: 3.5 / 10.0

Too cringe for my taste and the story doesn't make any sense.
It's hard to explain it if you haven't read, but I'll try. The MC knocks her head and remembers her past life yet she's still herself and by all intents and purposes her goal in life hasn't changed, it's always been her sister's well being. Yet somehow according to the novel she was going to abandon her sister to have an easy life (when she was having a hard life only because of her compulsion to save her sister), she saves an important someone that seams to fall for her at first sight (even thou that someone believes she's a man, but more importantly, she should have saved him in her first life since it's coming back of her weekly unavoidable meeting) and seems to become a rather disagreeable person when she's actually living following the teaching of her master (also a variable that doesn't change regardless of her regaining her past life memories), and those are just a few WTFs in the first few chapters.
In any case, the point is that the story is a mess, it could be explained for example if history was written by the victors, but it's a fictional story of a noble, so it doesn't cut it. Or it could be that she was the overly cliched case of the misunderstood villainess, but again, it's a novel, her personality should be what the author made her to be. I think that the author simply didn't know how to mix all the components here and made a mess, her action just don't add up she/he should have gone with a transmigration and that was that since it would explain the change of personality and events. Or, her remembering her past life from an earlier point would also account for them.
Last on the story, it's reverse-harem, it sucks.
Other than that, the characters are as said, so cringy, the MC is the only interesting one, but I really don't like it when a powerful FL lets the men grab her and touch her at their leisure for no particular reason.
Also, art is good. And the humor is not my cup of tea.
Overall, it's a rather bad shoujo, there are tons of the same thing done better out there and it doesn't have any remarkable aspect, it's a drop for me.

... Last updated 3 years ago

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