"Crawl" is the OP of all 26 episodes. Lyrics sung and composed by Veltpunch.
Lyrics[]
Romaji[]
Chi wa hau you ni susunde wa
Nabari no Ou OP
Heibon na joushou kurikaesu
Kizamareta unmei datte tada shinkokyuu
Tarinai no wa wakatteita
Gouon ni tsubusaresou na hibi
Hari no you na ame mo yande kimi ga kita
Sha la la, I sing for you
Sha la la
Iroaseta eien wa "taikutsu no shouchou" imi mo naku
Umi no soko ni tsukurareta POOL mitai da Uzu wo egaku suimen ni takasugiru sora ga utsuru
Joudan nara wakaru you na toki ni shite
Sha la la, I sing for you
Sha la la, fight for myself
Sha la la, I sing for you 
Sha la la
Taikutsu wa mou genkai desu
Tachitsukushita STAGE de nagurikaesu yuuki
I don't care, I don't care
"sonzai" sae mo kimi wa warau ka na...
Hashiridashita PACE de nagaretetta fuukei
I don't care, I don't care, I don't care
Tadashii ka dou ka wo tashikame ni yuku no desu ka?
Tadoritsuita GOAL de hajimete shitta shinjitsu
I don't care, I don't care
Ashita ni nareba kimi mo kizuku ka na...
Hagare ochita sangatsu no hizumi kitta kuuki mo
I don't care, I don't care
Going up the 13 steps
They'll be waiting for your hands
Itami wo shitta kyou kara ga atarashii START nara
I'll be there, I'll be there, I'll be there
Tsubuyaita koukai wa kimi no te ni kobiritsuku
Togisumashita yaiba wo ta ga tame ni furu no desu ka?
English[]
Willingly crawling along the earth
Everyday climbing repeats again and again
With destiny already engraved, just take a deep breath
It's not enough to distinguish
Days of wanting to smash it down with a roar
The rain like needles stopped, and you came
Sha la la I sing for you
Sha la la
An eternity that loses its shine is "a symbol of boredom" with no meaning
Like a pool at the bottom of the ocean
The high-up sky reflected in the water's surface I draw swirls on
If it's a joke, I guess I kind of get it
Sha la la I sing for you
Sha la la fight for myself
Sha la la I sing for you
Sha la la
"Boredom" has reached its limit
I stood frozen on that stage, looking for the courage to to strike back
I don't care, I don't care
I wonder if "existing" is something you can laugh about...
At the pace you start running, the scenery flies by
I don't care, I don't care, I don't care
Will you go confirm what's right and what's wrong?
Struggling along to the goal and for the first time knowing the truth
I don't care, I don't care
I wonder if you'll figure out when it becomes tomorrow...
Falling down in the distorted March atmosphere
I don't care, I don't care
Going up the 13 steps
They'll be waiting for your hands
The pain known today leads to a new start
I'll be there, I'll be there, I'll be there
Those muttered regrets that cling to your hands
Just who are you swinging around that sharpened blade for?