Danshi Koukousei, Otome Game no Akuyaku Reijou ni Tensei suru.

One day, "I," an ordinary high school boy living in the present day, was hit by a truck and reincarnated in another world. But what a surprise it was to find out that I was reincarnated as Elena Evan, the "villainess" of an otome game! If this continues, the future that awaits me will either be condemnation, execution, or exile... I want to avoid that at all costs. While I was worrying about this, I found a glimmer of hope. If Tiara, the main heroine, and I could get together and find a yuri route for us, maybe we could avoid a bad ending...? However, I am now beset by a number of beautiful and handsome men?! (Source: Kadokawa, translated)