(minna! CIRNO no sansuu kyoushitsu hajimaru yo!)
(atai mitai na tensai mezashite, ganbatte itte ne!)
kirakira DIAMOND kagayaku hoshi no you ni
eikou shiboukou nantoka shite hairou
tensai shuusai TOP mezashite GO GO!!
(bakabaka bakabaka bakabaka)
cho, chiga, baka ja nai mon!
(bakabaka bakabaka bakabaka)
bakatte iu hou ga baka na no yo!
(bakabaka bakabaka bakabaka)
nani yo, urusai wa ne! kono baka!
(bakabaka bakabaka)
koumakan kara BUS ga dete hajime ni sannin norimashita
hakugyokurou de hitori orite hanjin dake norimashita
Yakumo-san chi de futari orite kekkyoku joukyaku goukei nanninda?
kotae wa kotae wa ZERO nin ZERO nin
naze nara naze nara sore wa
gensokyo ni BUS nai
yama ochi imi nadonai wa
CHARACTER tateba ii no yo
genki ga areba nandemo ichi-ni-kyuu!
kurukuru tokei no hari guruguru atama mawaru
datte tsubura medama futatsu shika nai no ni
sanbon no hari nante chinpunkan
tsugi tsugi mondai deru mada mada jugyou tsuzuku
kooru heya no naka hinyari shita ondo mo jikan mo ki ni sezu
yukkuri shiteitte ne!
(bakabaka bakabaka bakabaka)
dakara, baka ja naitte itteru desho!
(bakabaka bakabaka bakabaka)
ii kagen ni shinai to reitou suru wa yo?!
(bakabaka bakabaka bakabaka)
soshite, konagona ni natte chireba ii no yo!
(bakabaka bakabaka)
English Translation
(Everybody! Cirno's math class is about to begin!)
(To become a genius like me, do your best!)
A sparkling diamond, shining like a star
Glory, my preferred school, I'll get in somehow
Genius, prodigy, aim for the top, GO GO!!
(IDIOT IDIOT IDIOT IDIOT IDIOT IDIOT)
Wait, no, I'm not an idiot!
(IDIOT IDIOT IDIOT IDIOT IDIOT IDIOT)
The one saying idiot is the idiot!
(IDIOT IDIOT IDIOT IDIOT IDIOT IDIOT)
What, how annoying! You idiot!
(IDIOT IDIOT IDIOT IDIOT)
A bus left the Scarlet Devil Mansion; three people boarded at the start
At Hakugyokurou, one left and half a person boarded
At Yakumo-san's house, two people left; so how many passengers in total?
The answer is, the answer is, zero people, zero people
That's because, that's because,
There are no buses in Gensokyo!
There's not any climax, point, or meaning.
Everything will be OK as long as the character settings are fine 'n good
With energy, everything is 1, 2, ⑨!
The clock's hands are whirling, my head is spinning round
Because there are only two round eyeballs,
There are three needles, it's as clear as mud
Problem after problem comes out; Still, still, the lesson continues
In the frozen-aired room, without considering the temperature or time
Take it easy!
(IDIOT IDIOT IDIOT IDIOT IDIOT IDIOT)
I told you I'm not an idiot, didn't I?
(IDIOT IDIOT IDIOT IDIOT IDIOT IDIOT)
Give it a rest or I'll freeze you!
(IDIOT IDIOT IDIOT IDIOT IDIOT IDIOT)
Then you can shatter into little pieces!
(IDIOT IDIOT IDIOT IDIOT)
Song Connections/Remixes
チルノのパーフェクトさんすう教室 is a remix of おてんば恋娘, stage 2 boss theme of the Touhou Project game 東方紅魔郷 ~ the Embodiment of Scarlet Devil.
An EDM remix of チルノのパーフェクトさんすう教室 by uno(IOSYS), titled チルノのパーフェクトさんすう教室 (EDM REMIX), can be found in DanceDanceRevolution (2014).
Trivia
チルノのパーフェクトさんすう教室's lyrics reference an inside joke within the Touhou community where Cirno (in which the character's theme is in question) is labeled as a "baka" (バカ,Japanese for "idiot"?). They also reference her labeling in the manual for another Touhou game, 東方花映塚 ~ Phantasmagoria of Flower View, where she is labeled number ⑨.
チルノのパーフェクトさんすう教室 received an INFINITE chart in SOUND VOLTEX II -infinite infection- on July 18th, 2014. It can be unlocked via INFINITE BLASTER.
チルノのパーフェクトさんすう教室 was added to pop'n music éclale on January 28th, 2016. Despite being a licensed song, チルノのパーフェクトさんすう教室 was not included on the TV・J-ポップ category.
An old style pop'n music rendition of Cirno is drawn on the banner (taken from Marisa's FEVER WIN animation), but she is not playable.
In pop'n music, チルノのパーフェクトさんすう教室 isn't keysounded.