Brian Time's Foals

Narita Brian, who shares the same dam (Pacificus) with Biwa Hayahide, actually has the same sire—Brian's Time—as Mayano Top Gun.

But throughbreds are only considered siblings if they come from the same dam, so MayaBri not being treated as brothers is pretty normal.

Born 1992

Born 1991

Born 1999

By the way, Tanino Gimlet is also another foal of Brian's Time.