So the MC was a high school girl

she have a friend, a boy , kinda easy going and delinquet like but overall he was a good person

The girl father have a debt, kinda he was doing business but the government regulation make his business down. The one doing it was the bank director and he was from the most biggest bank and have some authority in government.

The girl then decided to sell her body to this bank director who was already geezer. Basically in the luxury building at highest floor, there's around 5-10 highschool girls and all of them have debt because of this director. The director also brough 3-4 subordinates and want do doing some orgy party with the girls.

The girl then decided to act strong and seduced the Director so her family can be saved, the director was kinda drunk and then mad at the girl for being so rude by seducing him by calling his name.

The director then ask the girl to lick his feet and he laugh at her and the people whos life gone bankrupt because of his regulation at the bank.

Suddenly the a masked boy come to the building, the main girl then suddenly know this was the deliquent boy.

The boy then beat one of the director subordinate who try to attack him, and then drag the director.

He then told the director what has he done, he tell him, you know over nearly 100.000 house hold gone bankrupt because of your regulation, many people got fired or in debt. If one house have 3 family , then basically you ruin the 300.000 life of other people, who knows what they do, stealing or doing crime, basically you just make things worse.

and somewhat he lecturing him, and the director suddenly feel guilty, the then beat the shit out of director and told him, "pay for your sin" and drop the director from the building by kicking him out of the glass window.

The boy who wear mask then got his head exploded by something. The police then come, trying to find this boy identity but his face already got destroyed and even with dna test, the results was undetected or unidentified.

The girl then meet with the boy at school and he act normally, and then here's goes the girl adventure to reveal the mystery, while the boy cloning himself and killing every single high position government evil people.

The ending was sad actually, this manga is tragedy.

It's akumetsu I think

yes it was, thanks

gonna read it later