Isekai ni Tensei Shitara Densetsu no Yuusha (Uke) Deshita!?

At the age of seventeen...I died. However, when I opened my eyes, I was in another world! On top of that, I'm apparently the "legendary hero"?! Suddenly, a handsome man leaned in to look at my face closely. Hold up, you're too close! I mean, true, I'm the hero chosen by the dual swords Aloysius, but... There's something wrong with this world! There isn't a heroine anywhere! Lacking a heroine isn't a big problem, but why is everyone treating me like the heroine?! That's right... This is a scary world where the legendary hero is the uke! Oh, invincible hero, protect yourself and destroy all the BL routes standing in your way!