I really enjoyed this story. I haven't seen a whole lot of Kiichi/Haruomi around (I'm probably just not looking hard enough), so finding this made me smile.
The comparison of Kiichi and Haruomi to a circle and a line was very original. You also summed up their relationship in the line "Sometimes it seems to Kiichi that he has twisted Haruomi around him...". Kiichi really has changed the way Haruomi thinks.
Well, keep up the good work. I will enjoy seeing more work from you.