The Gist: a group of guys kidnap a woman off the road.
Source: http://www.gufengmh.com/manhua/zhimingchongqizongcainaminglai/493995.html#p=8
Contributed by Nephenthal
The Gist: A bad nurse chloroforms a woman to take her to an operation.
Source: http://www.gufengmh.com/manhua/zhimingchongqizongcainaminglai/233084.html#p=5
Contributed by Nephenthal
Fantasy doujinshi.
An adventurer named Clarisse is tricked into waiting in a room inside a mansion. She's knocked out with sleeping gas.
Original title: (ToreTama002) [AlberCorp. (Alber)] Clarisse no Sonzaikachi | Clarisse's Value (Granblue Fantasy) [English] {Doujins.com}
A female secret agent finds herself trapped in a room with sleeping gas.
Full name of the doujinshi: [Segami Daisuke] Youshoku no Ma Cultivation Room (Nakadashi Haramase Anthology Comics Vol. 7)
Story is set in ancient China.
A group of guards kidnap and knockout a female.
Source: http://ac.qq.com/ComicView/index/id/621525/cid/3
Contributed by Nephenthal
Hino Hitomi goes to change into a swimsuit, to complete part of a race. A pair of chimpanzees surprise her with a cloth soaked in a sleeping drug.
Update: the anime now has the exact same scene: http://clips.sleepycomics.com/clip/edit/murenase-seton-gakuen
Long haired girl wearing a pink scarf is kidnapped at some school football field.
She is then bound and gagged.
Source:
http://ac.qq.com/ComicView/index/id/543343/cid/130?fromPrev=1
A cute magical girl in ancient China is chloroformed in an alley and stuff into a bag.
Source: http://ac.qq.com/ComicView/index/id/630358/cid/17?fromPrev=1
Contributed by Nephenthal