I made a (so far) list of internet references in the OP and EP 1, if anyone's interested.
(Although I have NO idea where they got the S&M Quiz, since it's a Japanese site, most likely.)
== Reference for this Series ==
(OP)
Yuyushiki
Mom
Friends
(Unusually, though, it DOES NOT display any actual results on friends, despite the search keyword.)
(Episode 1)
Mauder Minimum
Sun
S&M Test
(Not the real link, but something similar, I suppose......)