Complex sentence: Yu Kanda first appears in "D.Gray-man" s fifth manga chapter where he, a powerful Exorcist from the Black Order who combats demons known as Akuma, attacks newcomer Allen Walker after the gate's guardian considers him cursed.
Split into simpler sentences: Yu Kanda first appears in "D.Gray-man" s fifth manga chapter. A powerful Exorcist from the Black Order who combats demons known as Akuma, Kanda attacks newcomer Allen Walker after the gate's guardian considers him cursed.