I don’t know if anybody ever watched the anime “Koutetsu Tenshi Kurumi,” aka, “Steel Angel Kurumi,” but it may just be me, but I think Kumi from Tottemo Pheromone really resembles Kurumi from the anime. Especially when both Kumi and Kurumi are nude with their hair down.
I’m just rambling, mostly because I’m bored, but I do believe it is quite a coincidence. Not a major one, but one nonetheless.