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ukepuncher's toxic BL masterpieces (MANWHA)

My personal favorite black flag/toxic BL.
TW for basically everything.
Black flag semes, uke abuse, gaslighting and confinement.
All(157) / manga(157)

Vivarium

 8.4(150 voted)
Complete
Author(s): Sundal
Genre(s): Webtoons / Yaoi / Adult / Mature / Smut / Drama

Confinement + morally corrupt straight uke getting bitched.
Personal favorite.

19 03,2025

Killing Stalking

 9.2(1462 voted)
Complete
Author(s): koogi
Genre(s): Mature / Psychological / Horror / Drama / Webtoons / Yaoi

The OG black flag seme. Many semes on this list are Sangwoo's sons.

09 01,2025

Sadistic Beauty BL Sidestory

 7.9(376 voted)
Complete
Author(s): Lee Geumsan
Genre(s): Mature / Drama / Yaoi / Smut / Webtoons

Worst of the worst semes.
Manipulative, abusive, toxic and insane.
Minho is my sweet pookie bear </3

09 01,2025

Slammer Dogs

 8.5(236 voted)
Ongoing
Author(s): Igingogi
Genre(s): Adult / Drama / Mature / Romance / Smut / Yaoi / Webtoons

Prison setting.
Uke is a piece of shit. 2 semes.
Everyone is really fucked up and crazy.
Lots of uke abuse and sensitive content.
Personal favorite.

09 01,2025

No Returns After Use

 7.7(590 voted)
Ongoing
Author(s): Migaeng
Genre(s): Webtoons / Yaoi / Smut / Adult

TW for extremely sensitive content!
Uke gets raped but isn't smart enough to understand it.
Adorable uke, really good art style. Smutty.

09 01,2025

Reverse Thinking

 7.4(160 voted)
Ongoing
Author(s): Lee Geumsan
Genre(s): Drama / Psychological / Webtoons / Yaoi

Same artist that worked on Sadistic Beauty.
Really violent bloody rape. Blackmail.
Seme is evil. Uke is Minho on steriods w/ a spraytan. Maybe a little dumber too.
Based on a really toxic novel.

09 01,2025

Formless

 8.3(736 voted)
Ongoing
Author(s): Won Lideu,Taegun,Wanttoread
Genre(s): Adult / Drama / Horror / Mature / Psychological / Romance / School Life / Smut / Yaoi / Webtoons

Uke abuse. EXTREMELY possessive seme.
10/10 plot and art.

09 01,2025

ASHTRAY

 5.5(930 voted)
Complete
Author(s): Pyeong an
Genre(s): Webtoons / Yaoi / Adult / Mature / Smut

Evil black flag seme. Uke is gorg and the art is amazing.
TW for suicide and heavy abuse w/ gaslighting.

09 01,2025

No Reason

 6.7(163 voted)
Complete
Author(s): salty
Genre(s): Ecchi / Action / Webtoons / Yaoi / Drama

Mainstory is extremely toxic but the side story goes even deeper.
1000/10 in terms of toxicness. Probably one of the worst semes on this list.

09 01,2025

Corrosive

 8.2(154 voted)
Ongoing
Author(s): Im ae-ju
Genre(s): Webtoons / Yaoi / Adult / Mature / Smut / Horror / Romance

Zombies, lots of rape, possessive ukes and semes.
Smutty but the art and plot make up for it.

09 01,2025

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