One possible plot could be that Ekko, with his time - bending abilities, accidentally travels to a dimension where Zac is in trouble. Ekko decides to help Zac out of his predicament, and during the process, they develop a deep bond of friendship that could potentially turn into something more.
Maybe in the fanfic, Ekko and Zac meet in the middle of a battle between Zaun and Piltover. They both realize that the real enemy is something much bigger and more insidious than the two cities' feud. So they team up, and as they journey together to fight this common enemy, they start to understand each other's motives and personalities, leading to a relationship based on mutual respect and admiration.
The best chapter pointer here is Chapter 226, "Live Fortune Telling!". It opens with What was all that before then? and closes on Are you sure you can be on the list of winners?] Zhou Xu: [?.
Chapter 219 is the strongest chapter-level answer because it starts from Qi Tianyu was somewhat freaking out. and follows through on Having any yield at all was already the show giving them face..
A practical answer is Chapter 219, because it turns the idea into a concrete scene. The chapter opens with Qi Tianyu was somewhat freaking out., adds pressure through —[This agricultural expert is the real deal.] After all, if the production..., and ends on Having any yield at all was already the.
Look to Chapter 221 for the clearest answer. It begins with Many agricultural students found themselves with tears brimming in their..., keeps building through Great, the hardships of agricultural students have finally been discovered., and lands on As a result, the production crew of Shanbian.
If you want the clearest chapter reference, go to Chapter 240. Early on, Wuuuuh He Bao truly deserves it, Mom always knew you could do it!"...; later, the chapter leans on After all, having been here for so many days, I've never seen him lose his....
Look to Chapter 241 for the clearest answer. It begins with It wasn't the director," Jiang Yan said with a blank expression, "Did you..., keeps building through Even if it was a slip of the tongue, how could you make such a mistake at..., and lands on However, as he turned around, before he could.
Look to Chapter 240 for the clearest answer. It begins with Wuuuuh He Bao truly deserves it, Mom always knew you could do it!"..., keeps building through After all, having been here for so many days, I've never seen him lose his..., and lands on Right then, her face turned completely sour..
A practical answer is Chapter 246, because it turns the idea into a concrete scene. The chapter opens with At that moment, not only Su Yinwan but also Shang Shaojing's complexion..., adds pressure through Heh, I think he can't last even a second, he'll be making a fuss to leave..., and ends on.
The best chapter pointer here is Chapter 256, "Bonfire Feast". It opens with Turning around, Jiang Yan and Zhao Lang found their heads had been... and closes on I was dazzled seeing Jiang Li trending today." Next door, Su Yinwan let....
Chapter 242 is the strongest chapter-level answer because it starts from Just when Jiang Yan called to heaven and earth in vain, he looked up and... and follows through on Just as he pushed open the creaky wooden door, a huge dead spider fell....