Take the System with You to Get Married

A special soldier from the Dragon Kingdom traveled to another world to become a son-in-law? What a joke! Young Master, I am a top student with special command skills. He has come to another world and is still flying up and down! Become a son-in-law? Ah bah! Slipping away... What? Did you bring a system? What? Ask me to marry you? What? Can you summon heroic spirits? What? Can you still summon girls? Ahem... First of all, let me state that I am not here for the girls... I just want to help...