Fairy Tail: The New Generation.

Natsu + Lissana = Enver Dragneel(son)
Gray + Lucy = Daniel Fullbaster (daughter)
Jerar + Erza = Lucas Fernandes (son)
Ren + Sherry = Shon Akatsuki (son)
Lyon + Juvia = Julius (son) and Lily (daughter) Bastia
Frid + Mirajane = Flin (daughter)
??? + Cana = Jack (son)
Laxus + ??? = Alex (daughter) Drayer
Happy + Sharly = Ain (son)
_______________________
Julius: Oooh, Daniel-chan~~~!
Lily: Rival!!!
Alex: Create a team "Raijinshū"?
Flin: You look like Harry Potter ...
_______________________

Picture is not complete. Later draw other children