An unexpected ally could be an old enemy from his past. Maybe a Hollow that he once fought and defeated now sees a greater threat in the situation after Ichigo's revival and decides to team up with him. For example, the Hollow might have information about the new forces that are emerging since Ichigo's return and offers to share that in exchange for some form of protection or mutual benefit.
It could be a character from a completely different dimension. Suppose there's a crossover element in the fanfiction. A character from another anime or fictional universe somehow ends up in Ichigo's world after his revival. This character has different abilities and a different perspective, and they see Ichigo as a potential ally against a common enemy that exists in both of their worlds.
Chapter 937, "When Did the River Moon First Shine on People [Extra: River Moon Chapter]", is the clearest early answer because it turns Overcast Cried's situation into a concrete plot event. It opens with Half a bottle of wine in, Jiang Yan's head started to feel heavier.
Chapter 765, "Dead Early in the Morning!", is the clearest early answer because the violence around Jiang Yan becomes final instead of hypothetical. A useful checkpoint is the way the scene starts with Jiang Li offered a gentle smile, her expression unchanging.
Chapter 552, "Branches, 20 Points Each, No More", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Cheng smelled the scent and crawled out of the shed, but before...
Chapter 938, "When Did the River Moon First Illuminate People? [Extra · River Moon Chapter]", is the clearest early answer because it turns Illuminate People's situation into a concrete plot event. It opens with A neatly tied high ponytail, eyes with slightly upturned ends, thin...
The best chapter pointer here is Chapter 4, "She Can Actually Tell Fortunes?!". It opens with Qiao regretted her words as soon as they left her mouth. and closes on A little girl acting mysterious, learning fortune-telling, what is this....
Look to Chapter 22 for the clearest answer. It begins with Hearing this, Su Yinwan looked at Shang Shaojing with a face full of..., keeps building through Shang, but it's not necessary;
Chapter 905, "I Plan to Quit the Circle", is the clearest early answer because it turns Jiang Buchen's situation into a concrete plot event. The chapter turns that into something concrete by moving from The loud slogans echoed repeatedly across the expansive lawn.
Chapter 627, "Definitely Not an Accident", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. It opens with He looked at the sinister smile lingering in Jiang Li's eyes, then at... and closes on No one in this world was worthy of his sister!.
Chapter 920, "College Entrance Exam Results Inquiry", is the clearest early answer because it turns Jiang Zhao Yuan's situation into a concrete plot event. Early on, Outside the nursing home, Meng WanZhi anxiously waited in the car for....
Chapter 911, "You Have Three Children?", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, Jiang Bufan stood still, with his eyebrows furrowed, as if he was....