Yumeria (TV)

When Tomokazu first meets Mone, he yells out "What is this!? Some kind of new Hilbert Effect!?!" The Hilbert Effect is first seen in Namco's Xenosaga (and Yumeria also happens to be a Namco game).

The title of the game and anime Yumeria comes from the words "Yume Eria" (Dream Area), "Yume" (Dream), as well as "Riaru" (Reality).

When Neneko presents herself to Tomokazu and Mizuki for the first time, in episode 2, she also presents her cat, and in the process delivers a truly beautiful tongue-twister in Japanese: "Kono ko wa Neneko no koneko na no da!" (= This 'kid' is Neneko's kitten).

In Episode 2: Numerous gags and odd references, including: Various ways of saying "Big Brother", allegedly "borrowed" from Sister Princess by Ishikari-sensei; Tomokazu yells, "What is this, 'School of Capital Punishment'!?" (Shokei Kyoushitsu), a 1982 Japanese film that's currently called "Class of 1984" (although the source has yet to actually verify the older title); A reference to the "Classroom of Sweet Honeys (Hachimitsu Jugyou)" from Onegai Teacher (both series had the same story editor, Kuroda Yousuke); and finally the Japanese equivalent of Stretch Armstrong, "The Most Unequaled Berabo-man", a 1988 Namco game-- Ishikari-sensei yells "Berabo~!!" as he gives Tomokazu a knuckle sandwich on the exam make-up day.

In episode 2, Mizuki comes to tutor Tomokazu which leads him to make mention of "Mizuho", an obvious reference to the red-headed bespectacled sensei of "Onegai Teacher" whom Mizuki bears a resemblance.