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I'll try provide a synopsis of Chp 1.

Spoiler for Chp 1 plot:

In the year 2020, Japan is ruled by the fascist-like Adult Party (with Nazi-ish armbands), who are committed to moulding its youth into "respectable adults" through utter force and control throughout society (especially in school). Coming to power after the previous "education disparity era", students are classified from either A-D rank (A the most respectable with good future jobs, D the least).

MC Eiji (usual delinquent look of spiky hair and scar above eye, but very good at sewing) strongly disagrees with the current climate, is most likely to speak out against it immediately and is in love with his happy-go-lucky childhood friend Akari.
However, an experimental goverment sponsored blood test gauging one's "genetic respectability" places Akari at rank SSS (no potential for physical or other defects) before he can confess his love to her. The government is now shifting her to "special school" (which obviously means something more sinister).

No hot-blooded shounen powers/battles yet, but it's mentioned in passing there's a "legendary" rebel group of super-powered teens fighting the government, who get powers from awakening their Libido.