I've never recruited these 2 characters in my files since I always screwed their moms' marriage till this file
What would be good skillsets for them both? Also, inheritance wise, I dunno what to pass down since the children will gain access to all their parents' skills manually anyway. Perhaps simple suggestions to make them start decently at least?
Well, for Gerome, Cherche should really pass down Dual Support + (rule of thumb; Cherche and Mirel should always pass that down) and Vaike should pass down a level 15 skill from a class that you don't really want Gerome to change to (for example, if you don't want to go through Berserker, you get him Axeflare from Vaike).
As for Cynthia, Henry should probably pass down Wrath or Gamble from Berserker, since Cynthia's only axe using classes are General and Great Knight, so axeflare is meh for her. Sumia should pass down a level 15 skill other than Galeforce (since Cynthia is already on the pegasus knight class tree). Renewal, Pavise and tomeflare are good choices to pass down.
As for skillsets:
Gerome: Wyvern Lord
axeflare(limit breaker) Sol dual support + deliverer Iote's shield (sword breaker if you don't have it)
Cynthia: Dark Flier
Galeforce Tomeflare (limit breaker) Luna Pavise or Iote's shield Renewal