Shoujo wa Isekai de "Satsuriku no Sainou" ni Mezameru少女は異世界で『殺戮の才能』に目覚める; A Girl Awakens to Her "Talent for Slaughter" in Another World

Hikaru, a high school girl, was seriously injured by bullying and lost consciousness. When she woke up, she was in a coliseum in another world! There, Hikaru awakened to a certain overwhelming talent that she had locked away deep in her heart.