Crossover: Honmaru Is Not a Daycare

What?! Our lord is only three years old?!

What do we do if our lord gets cavities from eating too much candy?!

Aruji has disappeared again today!

Tsurumaru, stop teaching our lord to play pranks!!

Another lively (chaotic) day at the citadel~

This is the story of a group of sword spirits raising a little mistress at their citadel, and making friends in various worlds along the way.

P.S. The little protagonist has no love interest, but some of the swords are paired up~