Crimson Bow and arrow is the first Opening of Shingeki No Kyogin aka Attack on Titan.
It is about humanity's war against the titans who are giants that desire humanity's extinction which as you see in the picture ends with Eren about to attack the Colossal Titan.
Lyrics (Full in English) Edit
Are you the food? No, we are the hunter! Crimson Bow and Arrow Not knowing the name of the trampled flower Birds that have fallen from the sky tire of waiting upon the windPrayers won’t change anything Only the resolve to fight can change the <Undesirable Present Situation>[present]… You pigs who sneer at our will to step over corpses and march onwards Enjoy the peace of livestock…false prosperity…"freedom" of the dying wolves that hunger! The humiliation of entrapment is our cue to counterattack Beyond the castle walls lies a <hunter> killing his prey With a surging <killer impulse> scorching his body, he pierces the dusk scarlet With a crimson arrow Drawing his bow, he takes after his target; he won’t let it escape Releasing his arrow, he closes upon it; he won’t let it escape He bends his bow to its limits, the string on the verge of snapping He’ll release it, time and time again, until <his target> draws its last breath What truly kills a prey are not <weapons>[tools] nor your skills at using it But your own sharp killing intent We are the hunter -> passionate as flames! We are the hunter -> cold as ice! We are the hunter -> pour your heart and soul into your arrow! We are the hunter -> boldly go forth and pierce through everything!
Attack on the Titans. The boy from back then will soon take up the sword. Who only laments his powerlessness won’t be able to change anything. The boy from back then will soon take up the black sword. Hate and rage are a double-edged blade. Soon, one day, he will bare his fangs against fate.
Ones that could hope to change anything Are ones who could bear to abandon anything Without bearing any <risk> at all, how could you hope to attain anything…? Foolish assumptions…they are but mere phantasms…right now, we could do with even reckless courage… The advance guards of <freedom>…betting on their offensive Victory to the charging slaves! All this absurdity forced upon us are our cue to attack Deprived of his horizon, <The boy from that day>[Eren] yearns for “freedom"[the world] With relentless <killer impulse> assailing his body, he carries violet to dusk- With an arrow from Hades