Well, this game dosent appeal to me, the theme is not the problem, the art work is great together with the antagonist look being charming (Ive done the struggle end, Got a bullet on my head, Letting the protagonist's soul rejoice with Christ in bravure and might, Then in another run i swallowed the shame in form of oatmeal just to find out it was maggots(Whose arent that bad nutritionally wise but still) Then she slapped the guy, Screen went black and i made up a fantasy that he just died again with his soul in pride and stopped there)

So she seems more like your traditional sadistic rather than a yandere, the "dere" part assumes she still do stuff for love in an extent, but if we go arbitrary about what type of love and at what form (and the form is where "yan" plays the part) I may as well try not loose gymnastics and say she is your typical manipulative sadist, So that got me in the wrong expectations, I think the tag "sadist"  is more fitting Rather then yandere ( In case she actually gets romantic late game, the wiki term for that is "sadodere" but that should depend is she dosent go beyond the twisted puppy love type, Still seems according enough)

For the guys that do enjoy this swing of things, i can tell they have a fine ground in this game, Still tho, despite there not being a romance tag with a yandere tag (wich sets the one sided expectation) i was thinking it would have been, uuh, different, oh well.