Sauce for the right one https://www.mangago.zone/read-manga/all_for_9900_won/hs/d_chapter...

Bitch yessss i was also curious about that they didn't put the sauce i thought i was gonna die :<

I think it's this one 'shigekikei my hero'. Not 100% sure and can't check right now because I'm in public (⊙…⊙ ) but that specific panel idk if it's from the main story or from the oneshot. I will link both
https://www.mangago.zone/read-manga/shigekikei_my_hero/
https://www.mangago.zone/read-manga/shigekikei_my_hero_dj_ore_no_honki_o_misete_yaru/