Beauty Pop: Kiri and Kanako, plus Kiri and Chisami. You could arguably get hints of this from Narumi-papa's attitude towards Seiji, particularly with the constantly-drawn parallels between the prior generation (Seiji and Narumi-papa) and the current one (Kiri and Narumi Shogo). Possibly why they explicitly re-draw the parallel at the end to compare the older guys to Narumi and Ochiai instead...
Either this or severe Hero Worship in Ozawa's case; although an otherwise unflappable Jerkass, Kiri's inherited-from-her-father cutting techniques are instantly recognized by him; following the announcement that Kiri is THE Seiji Koshiba's daughter, we find out that Ozawa has posters of Seiji in his room...
Also, Ochiai and Narumi, Kei and Narumi, Ochiai and Kei.