I don't think he was killed....From what I understood is that the lower demons cant say the higher demons name since they fear them, but if the lower demons can inflict fear of them in the higher demons mind then the higher demons are unable to say their name...just like how Makoto overcome his fear to Datenshou(D-san) and could call his name and how his scheming caused Datenshou to fear Makoto so instantly he couldn't say Makoto's name...so now D-san is overwhelmed by Makoto's presence which indicates that scene.....though its just my theory, don't know whether its right or wrong ╮( ̄▽ ̄)╭
Datensho is not a lowly demon but he is non strategic and leaves too many openings with his straightforward attitude-once Makoto got that he used it to the fullest. I think Makoto unsettled Datensho with his stated intentions of ruining J personally so he couldn't say his name at the end plus looks like some wierd sexual play was involved with his tassels and neck...it was weirdly hot.
Is that fucking mushroom dead now ?? Tf happened someone explain to me please!!!