Yaoi doesn’t mean BL with smut. Yaoi is a short term for “ Yama nashi, Ochi nashi, Imi nashi” which translates to “no climax, no point, no meaning”. Aka a story that is exclusively smut. Though nowadays it’s referred to as a way to differentiate between shounen ai and BL with smut. Since this story isn’t even BL at all, my point stands. Yes, Killing Stalking is NOT Yaoi :)
It’d literally your own opinion that it’s not a BL. Koogi has called it a BL herself. And again, it’s officially published as a BL. Go do your own fucking research because you clearly have no clue what you’re talking about. https://x.com/quietuserq/status/1946986108648132752?s=61

this story should NOT be considered Yaoi….