She is a very nice girl, I hate nice girls

The protagonist saves a dog from a traffic accident on his first day of high school but ends up breaking his legs. He misses the first couple of months of school and when he joins school again, the students have already settled in and have their own groups. Our protagonist once again becomes a loner.

He is not complaining though, he is actually fond of it as it gives him more time to do his personal chores and improve his skills without having to help anyone out.

He eventually meets the girl, Yuigahama Yui, whose dog he saved, but only the girl recognises him. Weeks later when he finds that out from someone else, he begins to suspect that Yui is nice to him because of her guilt over the accident which was caused by her dog.

He confronts Yui the next day and says that she doesn’t have to feel guilty because of the accident, He did what he thought was right and that he would have been a loner even if the accident had not happened and there was nothing that she could do to change his behaviour or his outlook. 

He ends their friendship if there ever was one as it would have been based on pity or guilt and as such would not have been real or sincere. He also hurts her feelings without intending to do so.

As she walks away from him heartbroken and feeling rejected, He shares his thought process:

Yuigahama is a nice girl. I’m sure she’ll be nice to the bitter end.

I hate nice girls. Just exchanging pleasantries with them makes me curious, and texting each other makes me feel restless. If I get a call from her, for the rest of the day, I’ll keep checking my call history with a stupid grin on my face.

But I know the truth: They’re just being nice.

Anyone nice to me is nice to others too. But I always find myself on the verge of forgetting that.

If the truth is a cruel mistress, then a lie must be a nice girl. And so, niceness is a lie.

I would always hold expectations. I would always misunderstand. At some point, I stopped hoping. An experienced loner never falls for the same trap twice. A lone warrior, surviving hundreds of battles. When it comes to losing, I’m the strongest.

That is why, no matter what happens, I will always hate nice girls.