Demon X Angel, Can’t Get Along! is a Manga/Manhwa/Manhua in english language, Comedy 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

Demons and angels are two opposite races. As the times change, they are tired of fighting. In order to coexist peacefully, they decided to start a marriage plan! The plan has a one-year observation period. If the devil and angel still cannot get along well, the marriage will be cancelled. As a result, Jiacheng (devil) and Yu Shanshan (angel) were “luckily” selected by lottery as marriage partners, and started a “happy” cohabitation life with the destination of divorce~