I LOVE DEATH NOTE
Death Note is an incredibly well written manga about a boy who obtains a notebook where if he knows what a person looks like and their name, he can dictate how they die.
The flash wasn't that great, but I gave you full marks because Death Note is the best.
A better ending would've been Raito going, "What's your name, little boy?" Then writing L's name in the Death Note and that would be that.