After completing his work with the test tube, Sandai calls his assistant.
"Neko-chan, come here. We have a specimen in our hands."
Neko listening to him, comes quickly from the 2nd laboartory.
As she enters the laboratory, she she a child of about seven or eight years old is sleeping on the table.
"Neko-chan, come here."
As she comes to the table, Sandai uses a knife to cut a big wound on her face.
"Ahhh, sir what are you doing." She cries while holding her face.
"Don't worry, now come and bite this kid hand and suck his blood." He says with a poker face.
She didn't move from her position because she couldn't understand his order.
"Do as I say quickly or I will use you for doing experiments." He said.
She while being afraid, slowly holds the hand of child and bites him.
As she sucks his blood, her face wound starts to heal. And in a few seconds it heals completely.
"Sensei, who is he?" She asks while feeling that her wound is completely healed.
"From his hair colour, chakra, and this ability, it can be deducted that he has the Uzumaki bloodline." He says while taking out his blood with the syringe.
"Make a cut on your finger slightly." He says to her and after she does that, he injects her with the blood.
After injecting the blood, her finger started to heal.
"Good, now take out a bottle of his blood and observe for how much hrs that blood works." He says her as he takes another syringe of his blood and cells and goes to another table to research on them.
She nods her head and attaches a bottle for collecting his blood with a pipe and needle.
In a few hrs, the bottle is filled fully. Then she attaches another nutrition bottle.
She takes the blood to her laboratory and experiments with the blood every 5 minutes on several mice.
After a few hrs, the potency of the blood reduces.
She takes her report and goes to Sandai.
"Sensei, after experimenting it has been found that his blood works till 3 hrs but after that it's potency starts to reduce. After 4 hrs, it's completely useless." She tells him the results of the experiment.
He nods his head and takes the report with his own report, and goes towards Danzo.