Macross Frontier
In "Macross Frontier", the Mihoshi Academy on board the "Macross Frontier" has a VF-1S fighter atop the roof. It is revealed at one point to be Ichijyo's first fighter as leader of the Vermilion Squad of Skull Squadron. In "Macross Frontier", Alto Saotome, as most junior pilot of S.M.S.'s Skull Platoon (a similar position to Ichijyo's), has his VF-25 Messiah fighter decorated in the same colors as Hikaru's VF-1A (and later S) from "Macross: Do You Remember Love".