Chie Saito is a girl who could be described in one word, plain.
Her hobbies include the appreciation of anime, manga, fantasy web novels, games, and imitation Japanese swords.
In other words, a typical geek. She became like this because of her highly athletic, excellent academic, extremely handsome childhood friend, Takasugi Yusuke.
He has a gentlemanly personality and such a nice face that 9 out of 10 women on the street turn to look at him.
And he is totally unaware and oblivious to the harem that has built up around him.
Just a real eroge protagonist.
And so, being childhood friends with such a person, I am hated by all the surrounding women.
One day, away from the harem, we stopped in the park and magic suddenly appears below Yusuke and I was also dragged in.
(summary from Xant & Minions)