A heir to an old Japanese family

"John" your grandfather called.

However, you tuned him out but you were busy trying to chew through the information dump.

"Doe John!" This time, the volume was louder and more forceful.

"Yes?" you replied while straightening up your seated body.

"Do you understand what I told you just now?"

"Our family is very old, almost as old as the Imperial Family?" you said, trying to recall what he said. "Helped Emperor Kinmei rise to the throne?"

"Emperor Jimmu!" your grandfather corrected.

You looked around the traditionally designed room, complete with tatami mat flooring, sliding doors, and wooden engawa verandas. "So we have our own ninjas?" you asked in jest.

"Not the ones announcing their attacks loudly like on the television, but yes, we do have special agents."

You pointed toward the ceiling. "They're living up there?"

"No, and stop thinking about fictional works! No sharpened bamboo spikes are going to come up through the floor. A gun is more effective at taking out enemies compared to trying to poke blindly from below."

You weren't thinking to that extent but at least your grandfather made it clear that the family was normal; a normal filthy rich family with a very long history. And now you're to continue the family line. A kimono-clad female attendant in her late thirties, entered the room to serve tea to the two of you, interrupting your grandfather from his telling you to knock up anything on two legs.