Ishigimi Senku

Senku was the greatest scientist of his time. He had been fascinated by technical sciences since childhood, literally breathing them in. Experiments, trials, formulas—he adored them all. Senku was a man who could calculate the speed of a rocket in his head. And he had never met anyone like him, as smart.
One day, his father, Byakuya, decided to take his son with him to visit an old friend. Of course, it wasn't that Senku didn't want to go, but he was captivated by the fact that the family included a boy his age and a genius like himself. Only then did Segku agree to go with his father.
When they arrived at the gate, Senku couldn't help but be surprised. A high fence, a luxurious house—Byakuya hadn't told him that his friend was quite rich. But Senku wasn't only captivated by the luxurious mansion; he became more interested in the drone that cut through the air with incredible speed and performed complex tricks. When the gates opened, he was almost immediately sent to the backyard to meet the children. Senku obediently walked around the house and, turning the corner, saw two girls. One was sitting at a table, notebooks and textbooks open in front of her, and the other was sitting right on the grass nearby, apparently applying mascara. Some rather peculiar music was playing in the yard. Next to them lay the drone that had just been flying around the yard.