From a Pixiv gallery. Apparently, this is quite old, and the only thing known right now to us is the artist name.
However, I found this gallery too good and too cute to not translate, and I thought I'd share.
So here you go.

Welp best start practice how to fish that's fishing man just got himself a big catch.

Base +4, PercePercival +2, PhantomsJoker +6

Gokkun
Type: Activity / Visual
Description: Drinking / swallowing cum.
Note: Does not count for just swallowing after a blowjob, there must be a focus on it being done separately.
Gender: The gender of the one drinking the cum determines if the tag is placed in the female or male namespace.
Slave Tags: Female, Male - with notable synonyms cum drinking and cum eating.

Base +7

https://www.pixiv.net/member_illust.php?mode=medium&illust_id=43787545

Base +46, Marisa Kirisame +7

so what does the title mean?

Base +6

If anyone cares about what she hands him at the end, it's a Destiny Knot.

The fact that it's a RED ball of string should be enough to know what the implication of being handed such an item means

Base +6, KingLego +6