R
—
(More) Incest
Chibi-Usa sexualization
S
—
The start of the “sexy MOTD”
More Chibi-Usa sexualization
SuperS
—
Date rape metaphors
outright pedophilia
beastiality
even
more Chibi-Usa sexualization
Yep, sounds like Ikuhara alright!

Classic and Stars, coincidentally the two seasons he
wasn’t head director on, were really quite tame in comparison. (At least sexual themes wise, Classic was still the most violent season though, had that one scene of Mercury’s clothes being ripped off that looked like it came straight out of a hentai, and the Nephrite/Naru grooming subplot but at least it was ambiguous whether he returned her feelings or not, and Stars had more innuendos in it’s dialogue, but other than that there was way less blatantly inappropriate sexuality being put on display in either season. In fact, if I recall correctly, once Ikuhara left in Stars there were no more sexy MOTD, where there?)