Somehow, you can't quite rely on the tag's either. Blackmail is not on the list, but we know that Chad is being blackmailed.
If I am not wrong...IF...the blackmail tag is added only when
a girl is being blackmailed and you can see her getting in trouble. Every Blackmail game that I have played, met this condition.
Edit: I forgot that the games where the
Male MC is being blackmailed, which is super rare, also gets the blackmail tag.
It affects the story... But here chad isn't the MC, and neither his part is affecting the main story, so maybe that's why they didn't add it.