@gwan: Part 2 right here
https://mangadex.org/title/31915/honzuki-no-gekokujou-shisho-ni-naru-tame-ni-wa-shudan-wo-erandeiraremasen-dai-2-bu-hon-no-tamenara-miko-ni-naru
It's the opposite of the legal 1000 year old lolibaba, even if she's gloriously THICC 12 is still clearly FBI territory... I'm gonna go take a seat right over there
It's a wonder this hero even manages to find the protagonist to fight him in the first place, I'd expect the battle to be over and the city in ruins by the time this guy manages to find the battlefield
pg5: fun fact, in certain cultures "having horns" is a euphemism for saying someone's being cheated on by their significant other, sounds like nega-kun has issues back home