Our protagonist finds himself summoned in a location by a s*xy elf girl. All nice and dandy, except there's an ogre in the room and he's not so happy to see us.

One fight later, it turns out the protagonist has a "special heal" skill, and is forced to use it to save the elf girl. She gets hot and bothered and ends up jumping him. Our protagonist is too clueless to notice properly what's going on.

Now, I'm going to be a spoilsport here and review it from a legal/moral-ish standpoint. This is not how you're supposed to read novels (I think), but later chapters trigger this way of looking at this story for me. Skip the next 2 paragraphs of this review if you don't care.

The protagonist asks for consent to heal the girl, but it's not like she can reject that (since it's accept or die). The effect is strong enough to make the girl want him NOW within a short period of time, and he's too clueless about how skills work or what this new fancy arousal magic is to stop what's going on.

I don't know how a court would rule if you had s*x with someone as result of trying to administer life-saving medication with side-effects, but I'm gonna say that it's less bad than having the girl dying and so it's okay. Maybe regrettable, but sure.

Once everyone's back to their senses, we go to the guild to get registered, and then to somewhere else to sleep. The elf girl refuses to answer any real questions about the current situation other than the help on the RPG side of things, stating that what happened to the previous people she had summoned was "too fresh and horrible to talk about right now".

Because we're in a cutscene, our character believes that leaving things like this is fine (it's not). The chat ends, and our elf girl leaves our protagonist alone.

Knock knock, it's a cat girl. She's here to help our protagonist train his special abilities. Here's a mana potion (laced with aphrodisiac), now let's have s*x. From that same legal/moral-ish perspective, this is drugging and then rape.

Anyway, there's some stuff about training in a forest next, in which the elf girl pulls the fantasy equivalent of an intercom tutorial ("I'll be behind you, just yell if you need anything, now go find and fight some monsters!"). Thanks for the neglect, you could have at least shown him how to do it first.

After killing a lot of monsters, elf girl and protagonist head back to town. Protagonist gets invited to the elf girl's home, where she ties him to the bed. The cat girl shows up; turns out that she's a friend of the elf girl. The plan? Double rape our protagonist; see whom he likes better, so they can be his designated girlfriend.

Author, I don't know what went through your head there. Maybe you think it's okay because characters will act like characters do. But that's not true. What happens in the story is what you write. And when you write things like this, it's not the characters acting out on their own based on their desires - it's you writing out your desires. And if you want to write some rape fic, that's fine, but for the love of god, please tag it properly so I can ignore it.

But wait, actually our protagonist grows some balls for once and decides to stand his ground and uses his abilities to "fight" back for once, taking control of the situation. They still end up having s*x, but this turns it from rape into "weirdly started s*x" which I'll chalk up to author inexperience. Or character ineptitude. Sometimes people are shy.

Having gained some hope out of that chapter that the story isn't all that bad, I read on.

We're finally shown the backstory.

Turns out our protagonist was practically murdered (though the specifics are left unclear) for summoning purposes. There's a magical relic that will kill our protagonist if destroyed, just in case he decides to slack off. There's supposedly a mitigating factor in that the elf girl had to do it or die herself (either directly by curse or indirectly by unchecked rampaging demon lord and demon army). Okay, fine, I'll forgive the kidnapping, and I sort of understand the slavery (that's what it is!), because summoning someone with special abilities without having a means to ensure their loyalty is not a smart idea.

But. This elf girl didn't explain jack. She's too horrified to explain what happened to her previous abductees, uses her new abductee as personal s*xtoy, is too lazy to explain the situation and gets angry when our protagonist gets assaulted when she leaves him alone.

That elf girl is toxic. The novel is toxic. I'm not going to pull an ad hominem here, though this sentence probably makes one anyway through implications.

Tag your novel correctly. Write your synopsis correctly. Think of what you want your story to be about, and then write your story that way. Right now there's two stories in one - there's the story in which a spoiled/clueless princess elf girl keeps summoning boytoy slaves in order to get rid of her duty to do something about the demon lord. And there's the story about an isekai protagonist with an erotic skill tree checking out a pretty much all-female world. I would very much love to read that last one, but this novel is not a good rendition of that idea.