Customized Plug-In: All the Worlds Are My Customers

[PS: Some of the early suspense foreshadowing seems too mysterious, so I'll start reading from Chapter 47] ♡The protagonist does not directly create the world, but becomes a "gold-finger wholesaler", installing plug-ins for problem children in various small worlds, letting them cause trouble, and receiving the source of the world as payment behind the scenes. ♡ Gu Mo's job is to "cheat" those children of the world who are in desperate situations. As a result, the style of painting in all the worlds suddenly became weird: on the anti-Japanese battlefield, a certain team's equipment became more and more advanced, and even launched a Gundam; in the world of immortality, the good-for-nothing young master could increase his krypton life by practicing without enlightenment; in the magic academy, the scumbag raised his hand and fired forbidden spells in succession, and the dean said he couldn't understand... When these "bad" customers began to push the world and slap people in the face like crazy, the biggest winner was Gu Mo, who was hiding behind the scenes to collect rent quietly. Until one day, the customers discovered that their "systems" seemed to come from the same "manufacturer"?