Which was the last Manga you just couldn't stop reading?
Once in a while I find a manga that I start and just cannot stop reading and almost spend the whole day inside and read it until its end.
The last one, that got me, I finished in 3 days (i think) and it was MARS.
What was yours?

I started reading the The Friendly Winter last night right before going to bed. I had only intended to read a chapter or two to see if it was worth reading, but I ended up reading the whole thing in one go!

I read Parasyte (10 Vol.), Mars (15 Vol.), Hi no Tori (16 Vol.) and Please Save My Earth (21 Vol.) in one sitting as all were finished and gave them a perfect score.
I also read all 60 issues of DC/Vertigo´s Transmetropolitan in one sitting, watched all of Monster (74 ep) over 3 days, completed MGS4 in one sitting (16-ish hours), read all of Ice and Fire / the original Dune books over one month or....
I tend to do such things regularly as concentration is my middle name and the Netflix release model is becoming quite popular these days. Good.

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I read all the available chapters of Black Haze, The Gamer, Haikyuu!!, Katekyo Hitman Reborn! all in one go. If I find an interesting manga, I tend to read it until the latest chapter that is available, unless there are critical exams for which I need to study.

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Nulla in mundo pax sincera
"Always go too far, because that's where you'll find the truth." - Albert Camus

It's been a really long time since I've read an amazing manga like that.
It's been since late 2011... I believe it was Vampire Knight, before it went bad.

if i find something i really like i try to read it slow...
tops 1 or 2 volumes a day
i like to stretch out the fun and not just have it over with...whats the fun in that

same with anime 1 or 2 episodes/day

its not like i am going to die tomorrow so why rush it
and even if i was...then i why would i care about having read it all
it makes no sense to me

The last one was Pandora Hearts, I was in my period of exams and I couldn't stop my urge to keep reading I just loved it, it suprised me all the time, when I thought something was obvious it just went a way I didn't spect and that kept me reading even more enthusiastically. I'm kind of sad it's finished :'(

For me I think it was One Piece

The thing with manga I just can't stop reading is that there has to be a considerable amount of it available, otherwise it's not that hard to put down. Since I haven't really started a manga that has a considerable amount available in a while the latest one will probably be One Piece since I only really started reading it around when the time skip came out. I'll admit that maybe because of that gorging I totally shed some tears with

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Holyland, Ciguatera, and Sundome.

I think that last manga that I couldn't stop reading (that included the novels) was No. 6.
Noblesse did that to me too, but that was a while back.