Ai Kora (also known as Love & Collage) is a harem manga created by Kazurou Inoue, running from 2005 to 2008. The protagonist is Hachibei Maeda, a teenager with a lust for specific physical attributes in women. He is accepted into a high school in Tokyo, but has to stay in the girls' dormitory. There, he meets the gals he's staying with, each of whom have a preferred trait of his.
Regaining the Waist (Volume 6, Chapter 59)