Action anime where MC isint afraid to kill..?

I'll continue
Mahouka Kouko No Rettousei
Mondaiji-tachi ga Isekai kara Kuru Sou Desu yo?
Maoyu Maou Yuusha
To Aru Majutsu No Index
Trigun
Campione
Darker Than Black
Tears To Tiara
Needless
Kiseijuu: Sei no Kakuritsu
Kure-nai
Koutetsujou no Kabaneri
Hidan no Aria, maybe i think? kinda forgot already
Akame Ga Kill
Gate: Jieitai Kanochi nite, Kaku Tatakaeri
Dungeon ni Deai wo Motomeru no wa Machigatteiru Darou ka
Black Bullet
Grisaia no Kajitsu/Meikyuu/Rakuen
Gintama
Baccano!
Hellsing Ultimate
Samurai Champloo
Katanagatari
Full Metal Panic
Berserk
Kaze no Stigma
One Punch Man, right?
Zetman
oh and i should say Kirito from SAO don't like to kill real players only the enemy inside the game....Show more

Bleach
Code geass
Naruto/shippuden
Attack on titan
Fate stay night/Fate zero/UBW
Gungrave
Akame ga kill
Parasyte
Trinity blood
Blood +
Gunslinger girl
Claymore
Shiki
Death note
Samurai champloo
Inuyasha
Rurouni kenshin
Yu yu hakusho
Deadman wonderland
Black lagoon
Jormungand
Casshern sins
Ikki tousen
Guilty crown
SAO
Blue exorcist
Tokyo ghoul...Show more

Akame ga Kill
Black Lagoon
Jormungand...Show more