Assassin walks into bedroom, Evil Princess eviling out in the open, takes evil toy and leaves Evil Princess with her suspicious curtain as is.
Samurai appears. Sees curtain. Opens curtain. Destroys tons of evil toys. Wonders what he's even doing in the first place.
Obviously it appears samurai either was under mind control or sensed the evil and attacked it or whatever. But it's still ironic that the MC aware of the evil, obliviously walked away from the super mind control crystal curtain cabinet. And a character that just appeared out of literally nowhere for the reader just destroys the evil macguffin in two pages.