Yeah this was a bummer. Still had some redeeming qualities, Liz was very likeable here and despite her growing discontent, she didn't take advantage of Ramon after he passed out and managed to restrain herself. Her struggle is actually emphasized on and when she inevitably breaks, the payoff would feel meaningful or at least that's clearly the idea. Art is on point as always and I'm glad Ramon wasn't drawn with yellows eyes like the homeless guys as initially seemed like he would be. Narrative-wise this is a preview chapter in every way, it's called "the beginning" after all.
The problem is Zetto is a lewd artist, not a fanfic writer. As such, this chapter again shows his issues with balance. When people complain about too much build or foreplay, he rushes to do the sex scenes right away as seen with the last few Homeless chapters or the Ranta stuff. When they complain everything happens too fast and Lizana just fucks anyone who makes a move on her, he decides to do these "introspective" chapters that lack almost any sex at all. He always tries to overcompensate and usually doesn't work. Again, since it's a preview chapter I can let it slide when it fits the premise, but it's an ongoing problem for him that he can't seem to shake off.
Also since we got specific ages for both kids, I'm sadly more certain than ever they won't do anything with Yuki and Diana. He is specifically mentioned to be 12 years old here, and if Zetto wanted to avoid any problems with Patreon, he would either not specify Yuki's age or just make him older. The fact that he didn't and instead we have a confirmation that Naewoo is 18 clearly implies the one who will get some action will be her. If or when Diana shows up she will either hook up with Ramon, or maybe get her own spin-off like Ranta. Either way, given how busy Zetto is, I don't see him doing a shota story specifically to put it on his Discord since his patrons are those who support him financially.
Anyway, I think the guy should reconsider his approach because he keeps trying to please everyone and ends up not pleasing anyone.