51cm

== Lyrics==
Japanese 	Romaji 	English
耳に心地よく響く 	mimi ni kokochiyoku hibiku 	Your tender voice
柔らかな　君の声が 	yawara kana　kimi no koe ga 	with its pleasant echo
遠く離れていても 	tooku hanarete ite mo 	still remains in my heart,
胸に残る 	mune ni nokoru 	even when we’re apart.
 	 	
あの日触れた指先 	ano hi fureta yubisaki 	I wonder what words
寂しげな横顔に 	sabishigena yokogao ni 	I may have now
今ならどんな 	ima nara donna 	to say to you, looking so sad
言葉をかけられるだろう 	kotoba o kakerareru daru 	when our fingertips touched that day.
 	 	
「繰り返しなぞるサヨナラを 	“kurikaeshi nazoru sayonara o 	“We keep saying goodbye over and over again—
本当は置き去りにしたかった？」 	hontou wa okizari ni shitakatta?” 	was it because you actually wanted to leave me behind?”
 	 	
我儘ばかりで　ごめん 	wagamama bakari de　gomen 	I’m sorry for always trying to get my way.
君の痛みに気付きながら 	kimi no itami ni kizuki nagara 	Even though I realized your pain,
側にいる　と呟いて 	soba ni iru　to tsubuyaite 	I still whispered to you that I’ll be by your side,
弱りだした心に付け込んだ 	yowaridashita kokoro ni tsukekonda 	taking advantage of you when your heart wavered.
 	 	
君の隣　空いた隙間 	kimi no tonari　aita sukima 	Next to you is an opened gap,
51ｃｍの空白 	gojuu-issenchi no kuuhaku 	a space of 51 cm.
そんな顔で微笑まないで 	sonna kao de hohoemanai de 	Don’t smile at me like that,
君の一番なら知ってるから 	kimi no ichiban nara shitteru kara 	for I know who your number one is.
 	 	
今はただの友達でいい 	ima wa tada no tomodachi de ii 	I’m fine with being just friends right now.
＜遠すぎず近すぎず＞（ごじゅういっせんち）の距離を守ってる 	gojuu-issenchi no kyori o mamotteru 	I’ll keep this distance, too close yet too far, of 51 cm.
 	 	
人混みを抜ける度に 	hitogomi o nukeru tabini 	Whenever you walk among a crowd of people,
ふと立ち止まり　溜息つく 	futo tachidomari　tameiki tsuku 	you’d suddenly stop in your track and breathe a sigh.
今でもずっと 	ima demo zutto 	I see. All this time,
アイツを探しているんだね 	AITSU o sagashite irun da ne 	you’re still searching for him, aren’t you?
 	 	
知らないふりして　ごめん 	shiranai furishite　gomen 	I’m sorry for pretending not to know.
君の涙に迷いながら 	kimi no namida ni mayoi nagara 	Even though I was at a loss whenever you cried,
その背を押す　勇気もなく 	sono se o osu　yuuki mo naku 	I didn’t have the courage to give you a push on the back,
ぬるい幸せに浸っていた 	nurui shiawase ni hitatte ita 	so I contented myself with the lukewarm happiness we had.
 	 	
君の隣　空いた隙間 	kimi no tonari　aita sukima 	Next to you is an opened gap,
まだ踏み込めない空間 	mada fumikomenai kuukan 	a space I can’t tread on yet.
そんな顔で俯かないで 	sonna kao de utsumukanai de 	Don’t look down like that,
こんな時　何も言えなくなる 	konna toki　nanimo ienaku naru 	or I won’t know what to say.
 	 	
今もただの友達のまま 	ima mo tada no tomodachi no mama 	I’m still no more than a friend,
51ｃｍの距離は埋まらなくて 	gojuu-issenchi no kyori wa umaranakute	unable to shorten the distance of 51 cm between us.
 	 	
嘘ばかりついて　ごめん 	uso bakari tsuite　gomen 	I’m sorry for always lying to you.
君の笑顔　取り戻す為 	kimi no egao　torimodosu tame 	To get back your smile,
断とうとしてた　最後の糸 	tatou to shiteta　saigo no ito 	I decided to sever the last tie between us
細い小指へと　括りつけた 	hosoi koyubi e to　kukuritsuketa 	and wrapped it around your slender little finger.
 	 	
君の隣　空いた隙間 	kimi no tonari　aita sukima 	Next to you is an opened gap—
ずっと欲しかった居場所は 	zutto hoshikatta ibasho wa 	the position I’ve always coveted,
僕ではもう　無理なんだと 	boku dewa mou　muri nanda to 	but now I know
分かってしまったから 	wakatte shimatta kara 	that it’s simply not possible for me.
 	 	
それが君の結論（しあわせ）なら 	sore ga kimi no shiawase nara 	If that’s what’d bring you happiness,
僕もきっと受け入れてみせる 	boku mo kitto ukeirete miseru 	then I will accept it,
だから今は　振り向かないで 	dakara ima wa　furimukanai de 	so please don’t turn back.
思う通り走り出せばいい 	omou touri hashiri daseba ii 	Just run forward in the direction you’ve chosen.
 	 	
いつかただの友達として 	itsuka tada no tomodachi to shite 	Someday, I want to walk by your side as a simple friend,
心から笑って隣を歩きたい 	kokoro kara waratte tonari o arukitai 	and smile from the bottom of my heart.
== External Links==
===Unofficial===
*UTAU Song Database
*
*Search for videos on Niconico Video tagged with "51cm"
*Translation Source
Category:Songs
Category:Japanese songs
Category:UTAU original songs
Category:Songs featuring Suiga Sora