No Waifu, No Life.

My first language is not English.!!!!!! Tags: Harem, incest, blackmail, Hentai, R-18. A man transmigrates into a world of everyday romance, where various romance novels and anime come together. When he wakes up he realizes that he now possesses the body of a wronged and disreputable student. To make matters worse, he only has 30 minutes to live!!! Ahh, what bad luck! Travel to another world just to die. System activated! Who said that he would die! I have always been an optimist, my great adventure begins here. First mission, steal the first blood from a girl within thirty minutes, and increase your life expectancy. Shit! I better sit here, where I'll get a girl in 30 minutes. Wait!!! That's it, Tomoko Kuroki, ha ha ha, she's not the most worthy!, but it would be worse to die.