Chapter 438, "Annihilation battle", is the clearest early answer because the buildup finally cashes out in a real clash.
Chapter 309, "The Blood Drenched City", is the clearest early answer because it pushes Saints into a new phase or setting.
Chapter 418, "Attrition", is the clearest early answer because it turns Fire Saints's situation into a concrete plot event.
Chapter 179, "Blood On Hands", is the clearest early answer because it turns Lying Water Saints's situation into a concrete plot event.
Chapter 906, "Spoils", is the clearest early answer because it turns Is's situation into a concrete plot event.
Chapter 751, "Out of hands", is the clearest early answer because it turns Is's situation into a concrete plot event.
Chapter 241, "Attack!", is the clearest early answer because the buildup finally cashes out in a real clash. The setup is If Higson had plenty of loopholes in their deal—that was: they could..., but the pressure keeps building through He simply couldn't betray him or his party directly..
Chapter 632, "Greed", is the clearest early answer because it turns Is's situation into a concrete plot event.
Chapter 893, "Host", is the clearest early answer because it turns Is's situation into a concrete plot event.
Chapter 521, "Stick to One Line of Work", is the clearest early answer because it turns Of's situation into a concrete plot event.