Echizen Ryoma has an older brother.
He is said to be an elder brother, but they are not related by blood, because his elder brother is a street boy brought back from outside by his father, while he is the legitimate only son born to his parents.
Perhaps for this reason, when he was still young, his brother packed up his luggage and left this warm home alone, started a life alone, and cut off contact with his family.
The parents tried to bring back this young man who had the same high tennis talent as his younger brother, but in the end they were unsuccessful.
Perhaps it was because Long Ya deliberately avoided them, or perhaps he had already left the United States.
And when they met again, it was already when Echizen Ryoma was twelve years old and Echizen Ryoma was eighteen years old.
Conception: