An Astolfo-kun who absolutely won't be able to ejaculate for 100 days, from Futayami.
Scanlated by Tabunne Scans.

raw: https://www.pixiv.net/en/artworks/80368549

It's extremely cruel, but funny in a cruel way.
Based on the description of the spell though it's not as much he couldn't ejaculate, than, for the next one, he can only do it inside someone's pussy to impregnate her... which seems Master won't let him do for quite some time...
But guess it also means "This master will be pregnant in 100 days"...?

This seems to be a oneshot (or rather, a lack of any shots...), but in case it's continued, naturally we will be scanlating those pages too.

Following this just to see the absolute spectacle that will be day 100.

Base +12, Divine God of Lust +6, GodEyes011 +6, Unhultha +7, Lostalgia +9

You're giving us a literal cocktease? Kind of ironic, don'tcha think?

Base +7, cacatel +6, Raift +9, Lostalgia +9, Scorps283 +6, gooched +6

This is not funny at all, it's just cruel.

This is yet another sick April Fools joke. It has to be.

Base +7, korat56 +6, cacatel +6, silversama +6, Lostalgia +9

It is a parody on the manga "This Croc Will Die In 100 Days", and following the same format of that, as several other manga and oneshots joined the trend now, being like "whatever random thing will happen in 100 days"
That's the reason it's 100 days.
Which is extremely cruel, and, an unusually cruel and long time of ejaculation ban, even from this artist, I think.
But the reason for that is parodising the 100 days manga format that is all the rage now.

And on a tiny side note, while the artist uploaded the raw to pixiv a few days ago, still, today is the First of April...

Base +6, Hawlc +6, Lostalgia +9, Scorps283 +6

"But in case it's continued"...?

How about you make sure there are enough images to justify a gallery first instead of making a gallery of LITERALLY ONE FUCKING IMAGE.
Unless you forgot your April 1st joke claim.

Base +8