Paradise of Despair is a Manga/Manhwa/Manhua in english language, Romance 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

The day of his mother's funeral was in the early summer when he turned 17. That was the same day he met Yashiro Kyouko. During the days he felt restless, she was the one who supported him. As long as she was there, then he could continue to live. In the peak of summer, the boy was taken away to "paradise."