Rimuru x Date a Live (English)

Due to boredom from work, Rimuru begged Ciel to go out to another world, but due to insufficient energy levels, while in the space-time tunnel, Rimuru encountered Phantom and was turned into a Spirit. But, actually, it was one of Ciel's plans to teach Rimuru a lesson. Even after knowing that he was tricked by Ciel, Ri...