Manthika

Summoned to another world, the saintess- had a tagalong.  Her personal antagonist, who promptly lied and claimed the saintess' position, and the ignorant around the main character treated her like trash and banished her despite her having the true ability to heal as well as knowing the future of the game.  Had they treated her with a bit of respect, she would have helped them, but treated like garbage... she doesn't feel too altruistic towards those who hurt her.  Especially those who would have her raped and murdered and left as garbage in the middle of nowhere. 

Honestly?  Good for her.  They don't deserve her help.  They deserve her hatred.  With a newfound ability to turn godly healing into sheer agony instead, she who might have been the saintess takes another turn, forging her own path and making her own choices.  Though I would've prefered her to straight up go demon queen evil for revenge, taking the path of 'save herself and stop certain events from happening' is alright too, and I can't say much without spoilers but. 

Yeah I'd recommend it.  Not bad for an isekai.  Bit cliche.  At least the main lead isn't a pushover, even if she has her dumb moments. 

But I mean, hey, there's a cat.

That's all you really need to know, isn't it?