Mari planned a superb party for Ken. She had the whole thing organized as "ninja training school", and five boys and one girl graduated with (literally, at some points) flying colors. There was "walking silently", "sitting poised with a cushion balanced on your head for a minute", "blow darts", "throwing stars", and "camouflage". And games and cake and pizza and sushi. It was amazing.
Organizing the event has been a treat for Mari. She's decided that she wants to start putting energy into a longer-term project and is going to start a "gluten free recipe" website in Japanese.