The World's Greatest Little Sister
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The World's Greatest Little Sister

Alternative Titles

Synonyms: Sekaiichi no Imouto-sama, Sekaimo
Japanese: 세계 제일의 여동생님


Volumes: 4
Chapters: 36
Status: Finished
Published: Jan 1, 2012 to Dec 1, 2012
Genres: Action Action, Comedy Comedy, Ecchi Ecchi
Theme: Harem Harem
Serialization: None
Authors: nyanya (Art), Kim, Wolhui (Story)


Score: N/A1 (scored by - users)
1 indicates a weighted score.
Ranked: #433052
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #18731
Members: 710
Favorites: 5
Ranked #43305Popularity #18731Members 710
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Volumes: /4
Chapters: /36


Maria Lunalady Blackhazel is a beautiful genius with heterochromatic eyes. Oh, that and she's also the leader of a ruthless, multinational private military company that brings forth chaos and destruction. Known as the "Princess of Pure Darkness" around the world, she's the subject of many people's admiration, hatred and fear. But to the main character Siyoung, she's an irrelevant person living in a completely different world. That is, until one day she suddenly shows up and kisses him.

"I wanted to see you, Onii-sama..."

And just like that, Siyoung was given the world's greatest little sister.

(Source: Baka-Tsuki)


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Feb 4, 2015
Preliminary (7/36 eps)
"Masturbation is nothing to be ashamed of. Sometimes, while thinking of Onii-sama, even I...♡"

"Onii-sama's stiff 'thing', it's been poking me in the back for a while now."

"If it's Onii-sama, I would gladly allow you. No, it has to be Onii-sama! If it's you, then it's okay to mess up and break my body."

"Onii-sama's scent, breath, voice and down to your single last cell; I find them so endearing and loveable that I can't hold back any longer."

"I'm full just by breathing in the same air as Onii-sama. Why, I'm so full that I feel like I'm pregnant with Onii-sama's child!"



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Recent Forum Discussion

Poll: The World's Greatest Little Sister Volume 2 Discussion
Stark700 - May 4, 2016
0 repliesby Stark700 »»
May 4, 2016 8:50 AM
volume 1 Discussion
JetNoir - Jan 4, 2015
2 repliesby Purefect »»
Apr 24, 2016 3:16 AM