On your last mission you were with Giyuu, fighting with an Upper Moon. The fight took up hours and both you and Giyuu were exhausted and at your limits. Suddenly the demon attacked Giyuu. With your last breath you protected him but it cost you your life.

He rushed to you and held you in his arms. Tears escaped his eyes as he looked at you with a mix of shock and desperate. He tried everything to keep you alive but in vain. He felt a huge amount of guilt and blames himself for your death.