Hearing what Shisui said Kai still didn't quite understand what was going to be the real reason Shisui was approaching him.
Because from what Shisui said it was clear that Shisui had a different purpose when approaching him in the first place before knowing what happened to his parrot.
Maybe that reason was going to be used to become the bridge to the real purpose Shisui had when approaching him.
But whatever the real reason is, there's nothing wrong with getting guidance from Shisui, who was so well known for his speed that people started calling him Shisui the body flicker.
He even heard people assume Shisui was using teleportation jutsu with how fast Shisui is moving.
"Are you sure Shisui-san, does it gonna bother you?"
"It's okay Kai, I also have free time to spend."
"Then, thank you for your help Shisui-san."
Looking at his parrot that was on his back that was still hiding away from Shisui. "You can fly away first Ōmu."
After saying those words he feels his parrot grip in his clothes getting tighter, Kai grabs his parrot from his back then brings it closer to his face and whispers to it.
"It's okay Ōmu you can trust him, you know my father already knew that I was here right."
Even though he whispered to his parrot he was pretty sure that Shisui was able to hear his whispers.
It's not like he doesn't trust Shisui when he intentionally whispers to his parrot and says a soft threat on his whispers but he doesn't want to put his life on the line because he thinks he already knew someone well enough in this world just because of the knowledge from his previous life.
He already learned from his mistake when he was 4 years old, when the hyuga accident was happening even though he had good intentions and he did not regret what he did, he was too careless with his own safety.
If orochimaru or Danzo knew the info was from him and suspicious about where his information came from, he knew death is the best option for him.
After he say those word his parrot finally fly away from him and go towards where the trees line was at.
Even though his father only comes from a civilian background there's so many connections that his father had with others that were from ninja clan especially with akimichi clan that already became business partners with him.
He thought it was enough to threaten Shisui a little bit but this method didn't apply to Danzo or Orochimaru who have so many experience dealing with kidnapping members of ninja clan.
"Have you had your bird for a long time Kai?, it's look like he really care about your safety."
Hearing shisui question Kai walked a little bit closer to where Shisui was at and look at his face who spoke with him with a smiles.
"Yes Shisui-san, I have since meet Ōmu when it was still a baby."
He proceeded to talk casually with Shisui about his parrot and other light stuff to melt the uncomfortable atmosphere that they had since beginning before he started explaining about his problem.
"So Shisui-sensei, please help me with my problem." Kai said while give a little bit of bow to Shisui.
"Okay Kai-kun, now you can try running again."
"I'm gonna give you advice where you can improve it while you are running."
After hearing instructions from Shisui, Kai start running until he reached the previous speed where he had bottleneck that he seems can't get passed.
"Kai the more speed you running, the more you have to give all of you body movement function to your instincts to work for himself."
"Don't give your brain a burden to manage all of your body functions, it is also not good when you are in a fighting situation where you need to think using your brain to face your enemy while you are on the move."
Shisui spoke to him while running at the same pace as him on his right side, hearing shisui instructions Kai now remembers his father teaching while his father first taught him how to do a kick.
He only follows his father's instructions without wanting to know the real purpose of his father's instructions, so when he is facing the same problem he probably has the answer to that problem.
Only because he did not know the fundamentals of the things that he did as long as he successfully did it, He ended up in the same problem without his knowing.