You can start from vol.8 if you wanna to see how Honda meet ayase,there no actual scene someya and Honda together(yet maybe ) but their a glimpse of it here's
http://www.mangago.me/read-manga/okane_ga_nai/mf/v09/c036/19/
http://www.mangago.me/read-manga/okane_ga_nai/mf/v09/c036/24/
HAHAHAHAHAAHA HONDA MAKING HIS PRESENCE FELT
even though he's not really in the frame! That yankee!
I came here via Henshin Dekinai, and whatever it is I thought Okane Ga Nai is, it wasn't it. I tried to get through a few chpters but gave up. I actually pushed through a few more pages just in the hopes of glimpsing more Someya and/or Honda. Does anyone has a bookmark or know which pages they appear in, because truly, the Ayase storyline is not my cup of tea at all.