Akunin no Jōken is a Manga/Manhwa/Manhua in english language, Drama series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

<< I would like you to kidnap a certain person from now on >>
It was the season when the cicadas crowed. Seven men and women gather in a certain building. The seven were strangers and visited this building with their weaknesses seized by a mysterious person named Dante. An eerie mask on the wall begins to speak, "You will kidnap a certain person from now on." This is a story in which those who have weaknesses are forced to kidnap. I can't escape ... Because I was able to hold my life.