私ノ七ツノオ祝イニ (Watashi no Nanatsu no Oiwai ni)

==Background==
Watashi no Nanatsu no Oiwai ni is the first song in Sister's Story, a series by masa.
The song introduces the two main characters of the series, the slightly-older Tsukuyomi and the slightly-younger Amaterasu during their shared seventh birthday, establishing their familial bond of being fraternal twins. While the two are very close, a petty dispute and accumulated hatred causes Amaterasu to kill Tsukuyomi by a blow through the abdomen with a staff.Summary of masa's (translated) explanatory Tweets on the series's story
While the illustration of the two sisters being impaled on the same staff may be misleading it can be inferred that it serves as metaphor for the consistent theme of the two "being one" as well as their eventual shared pain and confusion.
==Succeeding Versions==
==Lyrics==
<tabber>
original = 
Japanese (日本語歌詞) 	Romaji (ローマ字)
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
月夜ノ晩ニ姉妹ノ踊リ 	tsukiyo no ban ni shimai no odori
鏡ニ映ル私達ハ一ツ 	kagami ni utsuru watashitachi wa hitotsu
血デ染メ抜イタ世界ニ二人 	chi de some nuita sekai ni futari
最後ニ誓ウ姉妹ノ愛ヲ 	saigo ni chikau shimai no ai o
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
 	
恨ミヲ抱イテ姉妹ノ踊リ 	urami o daite shimai no odori
瞳ニ写ル私達ハ一ツ 	hitomi ni utsuru watashitachi wa hitotsu
血ヲ飲ミ干シテ許シテト啼イタ 	chi o nomihoshite yurushite to naita
最後ニ歌ウ君ヘノ愛ヲ 	saigo ni utau kimi e no ai o
 	
月夜ノ晩ニ姉妹ノ踊リ 	tsukiyo no ban ni shimai no odori
鏡ニ映ル私達ハ一ツ 	kagami ni utsuru watashitachi wa hitotsu
血デ染メ抜イタ世界ニ二人 	chi de some nuita sekai ni futari
最後ニ誓ウ姉妹ノ愛ヲ 	saigo ni chikau shimai no ai o
|-|
Remake = 
Japanese (日本語歌詞) 	Romaji (ローマ字)
血を分けた姉妹の般若の面は二つ 	chi o waketa shimai no hannya no men wa futatsu
怖がりの姉と元気な妹 	kowagari no ane to genki na imouto
どちらも私だ「私を返して」 	dochiramo watashi da "watashi o kaeshite."
 	
四十九日過ぎの猫柳に誓う 	shijuukunichi sugi no nekoyanagi ni chikau
私は善人あいつが鬼畜で 	watashi wa zennin aitsuga kichiku de
誰も知らない二つの活花 	dare mo shiranai futatsu no ikebana
 	
赤い夜空眺め青い地面さえ 	akai yozora nagame aoi jimen sae
赤に染めなきゃあいつが来る 	aka ni somenakya aitsu ga kuru
 	
月夜の晩に姉妹の踊り 	tsukiyo no ban ni shimai no odori
笑顔で啼いて涙も枯れた 	egao de naite namida mo kareta
血で染め抜いた貴女に贈る 	chi de some nuita anata ni okuru
私が謡う姉妹の愛を 	watashi ga utau shimai no ai o
 	
私を見なさい本当の姿を 	watashi o minasai honto no sugata o
どちらも私だ私を返して 	dochiramo watashi da watashi o kaeshite
昨日の命日あいつと私の 	kinou no meinichi aitsu to watashi no
生臭い夜に染み付いた香り 	namagusai yoru wa shimitsuita kaori
元々二つの授かりし命 	motomoto hitotsu no sazukarishi inochi
一つに変わって二つに戻った 	hitotsu ni kawatte futatsu no modotta
どうしたの、姉さん？血の涙流し 	doushita no, nee-san? chi no namida nagashi
私がやったの？お前をやったの？ 	watashi ga yatta no? omae ga yatta no?
 	
赤い君を眺め死んだ自分さえ 	akai kimi o nagame shinda jibun sae
赤に染めなきゃあいつが来る 	aka ni somenakya aitsu ga kuru
 	
貴女を抱いて姉妹の踊り 	anata o daite shimai no odori
君を受け入れ私達は一つ 	kimi o ukeire watashitachi wa hitotsu
血を飲み干して許してと啼いた 	chi o nomihoshite yurushite to naita
愛を誓った壊れた君に 	ai o chikatta kowareta kimi ni
 	
月夜の晩に姉妹の踊り 	tsukiyo no ban ni shimai no odori
鏡に映る私達は一つ 	kagami ni utsuru watashitachi wa hitotsu
血で染め抜いた世界に二人 	chi de some nuita sekai ni futari
最後に誓う姉妹の愛を 	saigo ni chikau shimai no ai o
</tabber>
==Derivatives==
==References==
==External links==
===Unofficial===
Category:Original songs
Category:Japanese songs
Category:Japanese duet songs
Category:Songs featuring Hatsune Miku
Category:Songs featuring GUMI