Yes
Considering Bel's age being 14, Touya and Touko are both 14. (The oldest protagonists in the game series)
By main characters, I think you mean the player characters. If so, yes, they have names. The boy is named Hilbert, and the girl is named Hilda. Their Japanese names are similar as well. The boy's is Touya, and the girl's is Touko.
Touya-sempai, possibly? Could be Touya-san
Gaël Touya was born in 1973.
Damien Touya was born on 1975-04-23.
Richard Touko was born on 1983-06-22.
Touko Tumanto was born on 1982-03-06.
I also belive that n is a big fat noob and he went to the jasukisameko region aka POkemon gray
no, it is said in MANY episodes that Touya is the father of Aya's child. Yuuhi is only going to take care of Aya and the child, when Touya dies.
Touya does know the secrets of Sakura. If you watch the episodes of Sakura Cardcaptor, it will show you.
My name is Touya and my FC is 1936 0052 4363 Battle or Trade me weekends or weekdays at 3:00 PM.
Rima Toya's birthday is on February 14th.