Tensei Shitara Budouha Reijou!?: Koishinakya Shinjau Nante Murige desu

Riding motorcycles used to be my favorite thing. I was particularly good at starting (and, most importantly, finishing) fights. I wanted nothing to do with love. I was tough! I mean, I had to be! I used to be in a gang, after all. And then, I was reincarnated... into a bad romance simulation game?! As the heroine?! And if I don't fall in love, I'll die?! Look, my new body is beautiful, delicate, and, admittedly, pretty hot... but does anyone seriously expect me, a former delinquent with zero experience dating, to do this? This game is impossibly hard! So I've decided to make sure the game never starts. Yeah, so long as I avoid my four love interests -- the overly emotionally attached Crown Prince, my demonic step brother, the controlling prince second-in-line to the throne, and that royal guardsman with a split personality -- everything should be fine... right? (Source: MangaPlaza)