我还以为男主喝了那瓶药以后会……

Base +4

It may be the last one but I think it might not because you see the original version say it has 12 chapters :https://sp.comics.mecha.cc/books/108538 while the dmm and dl has all chapters each in a bundle so it could be possible there is one more volume left before it ends.

Base +8, Alokrhea1 +6, Shadowegg +6

爽了一星期还给留一个，血赚

Base +6, #Hentai +6

Translate this comics please!

Base +6

Is there another one?

Base +6

Did some quick searching, and some sites have only 4, some have up to 12, but all have them as purchasable only.

https://honto.jp/ebook/pd-set_28930369.html?cid=ip_ebpd_setlineup_02
That's one I found where you could atleast buy all of them in some bundle setups, that particular link to all 12, or you could buy them individually for 66 yen each.

Another site where they cost 60 'sitepoints' each https://s.accessbooks.jp/content/00653364.html?from=contentosusumeChecked , though i'm not sure how easy they're to get, but it seems you need to use money in some form.

Base +6