Dual! Parallel Trouble Adventure/Heartwarming


 * When Kazuki first meets Yayoi, and like a true gentelman (or prince as Yayoi put it) rescues her without any thought for his own safety.
 * The very next episode shows him spending all of his money on medicine for her.
 * One time D accidentally threw Mitsuki's diary away. Then she took her Giant Robot to the nearest junkyard to try and find it.