死に戻り転生少女と運命の恋, Shinimodori Tensei Shoujo to Unmei no Koi

Mamiya, a 17-year-old who was supposed to have ended his life in a traffic accident, woke up to find himself in an unknown world. While confused by the sudden turn of events, he is attacked by a black mist Youkai that screams, "I will devour your soul!" In a desperate situation, he was saved by a young man wielding a Katana...!?