Just when Chen Yu embarked on his journey back to China with Jounouchi Hiromi, the Mingyue Society encountered some trouble.
Actually, the emergence of these troubles was to be expected. As a rising force, the Mingyue Society naturally sought to acquire interests of its own. However, interests do not materialize out of thin air; the rise of one power often comes at the expense of another's interests.
For such occurrences, Kyuuzai Ryousen and Tsuchimikado Yoshiharu, the de facto leaders of the Mingyue Society, had long been prepared. After all, establishing a new power in a place like Tokyo was unlikely to happen without encroaching on someone else's piece of the cake.
Even with the emergence of completely new industries, the decline of old industries is an inevitable part of their rise. It's all part of the natural order.
However, clearly, the existing powers are not willing to willingly cede their established interests, and a struggle between the two is inevitable.