Ninja Academy beginner question

[Sin_Harvest]

Umm i just started this game like today and I just wanted to know that if i play a ninja could i use ninja academy to bring out another kinda like a special summon in yugioh:confused:

[Rakath]

As long as the Mission/Jutsu/Ninja effect that deploys another ninja does not say "This counts toward your 1 ninja card per turn" or like text, you may use it to deploy a second ninja.