This girl reminds me of that glasses girl who's in love with Nishizono (main girl) from the The moon is beautiful tonight but please die manga (The bloodlust when in love manga, you gain special abilities according to what your crush praised you on). She got poison blood abilities and there's a twist where she faked being all innocent and shit but plans to kill the main character so she can monopolize her love. She just reminds me of her, there's no similarities.
P/s: Here's the manga
I love you, but first, die. Also oops, I got the main girl name wrong (long time I forgot), she's actually Hanazono (means flower and something). The manga is separated to 2 parts for some reason, it's not really a sequel but a continuation like
To Love Ru Darkness (which I think is a proper sequel
(contradicting myself here) cause it's just a better
To Love Ru (uncensored and fleshes out more characters) and all the events of To Love Ru are summed up in its first few chapters. But sequels can also continue from the previous story or setup a new story in the same setting or even new setting... What I'm trying to say is To Love Ru actually concluded while Konya Tsuki wa didn't so its continuation isn't a sequel but To Love Ru is). Anyways, here's the
2nd part.