One of the funniest manga I've read purely because its funny. Good that its not erotic or anything and focuses on absurdist comedy while staying strangely cute and a little wholesome.
Comedy: 9/10 (yeah it's mostly pp jokes, puns and the main character pointing out the absurdity of the situation which you might get used to quickly if you are binging this)
Plot: weak but unique, relies too much on luck and coincidences, not much buildup to anything, the guy actually gets dumber as he overthinks.
Art: pretty good, especially the girls.
Ignoring how his genitalia detached from his body, obtained sentience and clothes; why do they know some things but don't know other things at all? That's just too convenient even with the given explanation.
Some of them end with basically the same punchline i.e "this positive(?) thing happened because of my d*ck."
They appear to be normal girls but with some minor superpowers and some kind of mystical connection to him.
No need to explain how it works but I would like to know if the nutrients are shared between them. Like seriously, the only thing he tested is how he pees and even that was part of a funny accident.
And I think there is a slight inconsistency and ambiguity with how he gets erections.
Overall very funny manga with an interesting premise, the characters do have personality and stuff and as a gag manga it just works well.