Warning: This song contains questionable lyrics and themes (Suicidal themes and self harm references); it may be inappropriate for younger audiences.
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Official English: Re-education
Uploaded September 2, 2012, with 2,059,000+ Niconico views and 44,800+ YouTube views
Neru's 10th original work. Along with Tokyo Teddy Bear, Abstract Nonsense, and more, it is among some of his most notable songs. It reached 1,000,000+ views on January 23, 2014.
Saikyouiku was uploaded as one of the tracks for the compilation Vocaloconnection, which was released a few months before. Unlike mothy or Yanagi-P who upload the songs for their compilations a day after the compilation's release, Neru released it a few months afterwards. It would also be released in his first major album with EXIT TUNES entitled "Sekai Seifuku".
It may or may not be related to Abstract Nonsense, for the girl with the black hair resembles the girl shown in Abstract Nonsense. Tokyo Teddy Bear on the other hand, references Abstract Nonsense as well, so in a way, it can be said that the three songs may be connected with each other.
The girl in Saikyouiku is named Yamaguchi while the boy is Tanaka.