To be fair, downing that without ice may be the norm for him, given the crazy shit that happened in a decade, and now the four-eyed slimy fuck just turned Hard to New Game+
@trapster77 It's actually a subgenre of NTR called BSS. Though you were never in a real relationship with the girl, you still feel jealous when she ends up with someone else.
Another fun fact, but Iwanaga-hime is also tied to Mokou. She refused to let the elixir that mokou eventually drank be dumped into her volcano, explicitly because it was an elixir of eternal life - which fucked everything up because the escort crew was kept oblivious of that fact until then, and it lead to them turning on and killing each other. ...this fact seemed more fun before I typed it out.
To nitpick: Mokou and the crew climbed Mt. Fuji and met Sakuyahime, who told them to go to her sister Iwanagahime at Mt. Yatsugatake instead (which they didn't end up doing, because Mokou took the elixir soon after). So Iwanaga herself hadn't appeared in person yet before FW.
(Mokou is also of the opinion that Sakuyahime killed the escort crew herself, unless the soldiers suddenly developed fire powers while she was asleep.)
Kermit definitely has "a type" as seen when he finally officially broke up with Piggy, he went straight to another pig, didn't even bother to try and hook up with another one of his species.