Isekai where the Heroine isn’t bad or antagonistic

• World: novel
• Protag’s role: original supporting character
• Relationship w/ Heroine: twin sister
• TW: domestic abuse; alcoholism; torture; strangulation

• World: novel
• Protag’s role: antagonist
• Relationship w/ Heroine: friend
• TW: self-harm
• Note: Despite the description, the FL is not intoxicated when sleeping with the ML. Too distraught to be making sensible decisions, but he does not touch her while she’s drunk. Though you could argue he shouldn’t have gone with it when she was so clearly distraught when she came onto him.

• World: novel
• Protag’s role: supporting character
• Relationship w/ Heroine: ally
• Sounds zombie apocalypse-esque meets typical isekai novel world, so it interests me enough to check it out despite hating harems lol

• World: novel
• Protag’s role: N/A
• Relationship w/ Heroine: friend

• World: novel
• Protag’s role: ?
• Relationship w/ Heroine: younger sister

• World: novel
• Protag’s role: N/A
• Relationship w/ Heroine: allies

• World: novel
• Protag’s role: minor antagonist
• Relationship w/ Heroine: twin sister

• World: novel
• Protag’s role: antagonist
• Relationship w/ heroine: older sister

World: novel
Protag’s role: antagonist(?)
Relationship w/ heroine: acquaintances

(There are two heroines and they’re more interested in each other than FL; one is genuinely a good person who never has any bad intentions towards the FL, even though she has a few choice words now and again and feels threatened by her)