I can't help but feel this series isn't a good one from a purely meta perspective.
Isekai series and bishoujo gacha games are wish fulfillment enough; combining the two and portraying it as a good thing is actually sort of creepy (if topical to the current mobage climate and the overwhelming financial success of games like Granblue and FGO).
The MC isn't even a protagonist who is NEET but otherwise independently wealthy to justify egregious gacha spending; he's actually running into food issues. He's disgustingly spending actual living funds on gacha (and what seems to be running into his credit line).