Maybe the time travel is caused by a mysterious time - space ninjutsu. In the past, Naruto and Sasuke find themselves in a world where their actions can have a huge impact on the future. The kiss could be a spontaneous reaction to the realization that they are the only ones who truly understand each other across time. As the story progresses, they might try to prevent certain tragedies from happening in the past, all while dealing with their new - found and complicated relationship.
In this fanfiction, it could be that they are sent back in time by an ancient power. When they arrive in the past, they are met with a version of themselves that are much more naive. The kiss might happen as a form of comfort between them, especially when they see the challenges that lie ahead in this different time. This event could set off a chain of events where they have to balance their relationship, their mission to return to their own time, and their desire to fix the past.
Look to Chapter 167 for the clearest answer. It begins with By the experimental field, Qi Tianyu was quite helpless as he watched Wen..., keeps building through He tried once again to pull back his suitcase, but to no avail, as one end..., and lands on Even when getting into the car, Qi Tianyu was.
A practical answer is Chapter 170, because it turns the idea into a concrete scene. The chapter opens with Watching the two who had long remained silent, the PD shifted his position..., adds pressure through I really want to see the chaotic scene!], and ends on [Didn't the other guests also do.
A practical answer is Chapter 184, because it turns the idea into a concrete scene. The chapter opens with Jiang Li can finish the competition alone???, adds pressure through Director Sun, who had witnessed the whole process: "......" This is..., and ends on Slow down, I'm so scared." "Shang.
If you want the clearest chapter reference, go to Chapter 188. Early on, With a "snap," the pencil Jiang Cheng was using to draw broke on the paper.; later, the chapter leans on He looked up, the cold glint behind his glasses sending shivers down one's....
If you want the clearest chapter reference, go to Chapter 151. Early on, Now it was Zhang Cheng's turn to be confused.; later, the chapter leans on The problem lies with He Yun?. By the close, I will have my assistant pay the bill., and the chapter closes with Was he...
If you want the clearest chapter reference, go to Chapter 191. Early on, This change made Jiang Cheng extremely uncomfortable.; later, the chapter leans on It was as if he had been an outsider from the very beginning..
The best chapter pointer here is Chapter 159, "The Other Flying Guest is Actually Him?!". It opens with Seeing the red light of the camera turn on, Su Yinwan looked at the... and closes on Shang Shaobai, who was browsing through files, received a call from his....
Chapter 151 is the strongest chapter-level answer because it starts from Now it was Zhang Cheng's turn to be confused. and follows through on I will have my assistant pay the bill.. The payoff is that the chapter closes with Was he...
If you want the clearest chapter reference, go to Chapter 193. Early on, Jiang Shixu's eyes lit up when he heard there was a gift.; later, the chapter leans on But the next second, he carefully asked, "Is this gift for everyone?" "No,....