This is basically gacha: your dreams do come true (or something like that) because it serves the readers the satisfaction of getting that sweet sweet ssr item. Now for people that might say oh this gacha is kinda broken because in reality you aint getting a single piece of ssr until you empty your wallet but you know not everything needs to be logical and sometimes you just need to fantasize what is like to own a ridiculous amount of rare items.
But of course our mc isnt just some stupidly lucky person, no she is favored by the gods for her wonderful contribution to increasing influence of the god of beauty and she is basically blessed. And I think that is an interesting factor that these gods are immortal and upon seeing something interesting in the hands of another god they flock around to see whats the deal.
The story doesnt just throw these rare items at the mc, she uses them for various tasks that the god of beauty gives her (tasks that is focused on spreading his name) , which is always a good thing, getting a rare character for example you check their stats and assign them to the most suitable jobs for everyones benefit instead of them being just thropy items from gacha.
Also notice that I babelled about the gacha system and not the looming reverse harem because even the story itself is more focused on that, not that romance isnt interesting but gachas are fun.
Basically a dream come true for collectors or gamers with relevant systems like gacha (like rpg card games)
Also there's handsome soldiers like Lipton.