This is the biggest piece of trash I ever came across while reading manga. I stopped at ch.7, and regretted the time I lost while reading it.
It's and extremly primitive sci-fi harem, with a teenage sociopath as the lead.
Don't loose your time with it. Go read anything else, cuz literally anything will be better than this.
SPOILER;
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The "story" goes like this;
All people on earth fall mysteriously asleep, theres just this one guy who wakes up. After 3 days of doing nothing, he goes to a restaurant and rapes a sleeping waitress.
And the girl wakes up, what a miracle! And thats the story. Guy goes around raping sleeping women to wake them up with his magical dick. The raped women don't mind beeing raped. So his harem grows and grows forever.