Bonding with Sakuraha Tsukuyo

[Amplify]

Continue with the main game until you get to the point where you would normally start the Great Ant Kidnapping event. (Post Fame 8, after defeating the 9 Factions and having at least 2 female party members bonded and outside of your party, and being Level 80+)
Enter your Homestead and fight off the ninjas with Sakuraha. Go into each building.

Anyone familiar with this event? I've no idea how to get the ninjas to show up at my home, I'm not sure what I'm misunderstanding here.

[Yaldabaoth]

It says exactly what you need to do in the text you quoted. Fame, play the main story until after you defeat the 9 Factions, have bonded girls in your homestead, event happens.