秘蜜〜黒の誓い〜 (Himitsu ~Kuro no Chikai~)

==Background==
The song tells of the angel Rin, that stumbles upon a girl, Miku Crynpto, who Rin instantly falls in love with. But, love between an angel and a human is forbidden, and Rin yearns to find a way for them to be together. She kisses her and disappears in shame. Afterwards Miku meets a mysterious boy named Len, and falls in love with him. Although she is to be wed to another man, she left with Len. However, another angel, Kaito, Rin's old partner, has been sent to punish Miku and kills her. Len reveals himself to be Rin, having given up one wing to a demon to be with her. Rin gave up her last wing to save Miku, sacrificing herself and leaving a single feather.
This song is featured in the EXIT TUNES compilation album "Vocalonexus", in Hitoshizuku-P's mini album Himitsu ~Mushoku no Chikai~ which also includes an answer song explaining the girl's point of view, and STORIA. It is also featured in Yamashizuku's debut album EndlessroLL.
==Lyrics==
Japanese (日本語歌詞) 	Romaji (ローマ字)
羽堕とした堕天使は 	hane otoshita datenshi wa
汚れた契りに身をゆだねて 	kegareta chigiri ni mi o yudane te
愛し合った過去でさえも 	aishi atta kako de sae mo
その手で消し去ってしまったの 	sono te de keshi satte shimatta no
 	
傷ついた迷子の天使 	kizu tsuita maigo no tenshi
夕暮れの街　彷徨い 	yuugure no machi samayoi
奇麗な瞳をもった 	kirei na hitomi o motta
ひとりの少女と出会う 	hitori no shoujo to deau
 	
目が合ったその瞬間に 	me ga atta sono shunkan ni
恋に落ちた哀れな天使は 	koi ni ochita aware na tenshi wa
許されない想い募るまま 	yurusare nai omoi tsunoru mama
禁忌の箱を開けた 	kinki no hako o aketa
 	
求めたものは　笑顔の裏に隠された 	motometa mono wa egao no ura ni kakusareta
禁断の果実 	kindan no kajitsu
人と天使　許されない恋　叶える為に 	hito to tenshi yurusare nai koi kanaeru tame ni
全てを壊すだけ 	subete o kowasu dake
 	
汚れない心捨てて 	kegare nai kokoro sute te
君を愛して生きられるなら 	kimi o aishi te iki rareru nara
この羽さえ切り捨てて 	kono hane sae kiri sute te
悪魔に身を委ねてしまおう 	akuma ni mi o yudane te shimaou
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
ah-　禁忌の罪は 	ah- kinki no tsumi wa
癒えぬ傷となって刻まれ続け 	ienu kizu to natte kizamare tsuzuke
怒れる裁きの矢は 	ikareru sabaki no ya wa
漆黒の少女を貫く 	shikkoku no shoujo o tsuranuku
 	
羽堕とした堕天使は 	hane otoshita datenshi wa
汚れた契りを解き放って 	kegareta chigiri o toki hanatte
その命と引き換えに 	sono inochi to hiki kae ni
一枚の羽だけを残して 	ichimai no hane dake o nokoshi te
少女を救って 	shoujo o sukutte
 	
消え去ったの 	kie satta no
 	
羽堕とした堕天使と 	hane otoshita datenshi to
汚れた黒に染まる花嫁 	kegareta kuro ni somaru hanayome
地の底へ堕ちてさえも 	chi no soko e ochi te sae mo
誓いの楔を絡め合って 	chikai no kusabi o karame atte
許されない罪を抱えていく 	yurusare nai tsumi o kakae te iku
 	
罪の果実が朽ち果てた時 	tsumi no kajitsu ga kuchi hateta toki
再び巡り合うその日まで 	futatabi meguri au sono hi made
==Derivatives==
==External links==
===Official===
===Unofficial===
Category:Original songs
Category:Japanese songs
Category:Songs featuring Kagamine Rin
Category:Songs featuring Kagamine Len
Category:Songs featuring Hatsune Miku