境界

境 = 土 + 竟 : Joan of Arc wants to start her own kingdom and starts with claiming her own territory in the engine's bathroom. She created some walls out of mud but because she has no money to pay, she has a very inexpensive border control consisting of Jacks in their boxes.

界 = 介 + 田 : Joan of Arc wants to leave this world and sets up a rocket launch field in the elevator's bathroom. The field looks like a normal crop field, except that there's a rocket in the middle and that the Joan of Arc marked the boundary with white and red tape.