Ito Kampo did not go to Shang Qi for treatment. In the end, he was arrested by the guard unit of the Land of Demons and thrown into prison.
Tsumura had already confessed to all of Ito Kampo's wrongdoing.
It turned out that Tsumura's father, Mitsui, had caught a cold and was suffering from a relentless cough. Ito Kampo and Tsumura had secretly conspired to have Mitsui seek treatment from other physicians. However, the medicine brought back home was secretly swapped by Tsumura behind the scenes. This vicious act caused Mitsui's condition to rapidly deteriorate from a common cold into severe pneumonia, which remained uncured for a long time.
Chapter 26