Kekkai Sensen, Cop Craft Recommendations
In both a portal from another world opens up on earth.
Both stories take place in eccentric settings populated by all kinds of crazy creatures and the main characters have to deal with troublesome events.
Cop Craft is a perfect blend of Kekkai Sensen's insanity and a praiseworthy effort of copying Blade Runner's futuristic theme. Set in a futuristic theme world both shows perfectly shows the craziness of a world which is overrun by a different type of species and follows a western influenced environment and follows the adventure of an organization which maintains the balance of 2 worlds from the shadows.