Chikai (Eiko Shimamiya song)

"Chikai"
Single by Eiko Shimamiya
B-side	OXISOLS
Released	April 8, 2009
Format	Maxi
Genre	J-Pop
Length	19:44
Label	Frontier Works
Producer(s)	I've Sound
Eiko Shimamiya singles chronology
"Wheel of Fortune" (2007) "Chikai" (2009) "Super Scription of Data" (2009)

"Chikai" (誓い Vow) is Eiko Shimamiya's fourth single produced by I've Sound and Geneon Entertainment label. It is set to be released on April 8, 2009, a year after releasing her third single "Wheel of Fortune". The title track is used as the opening theme for Higurashi no Naku Koro ni Chikai (ひぐらしのなく頃に誓), the live-action film sequel for the first Higurashi no Naku Koro ni live-action film.

The single's catalog number is FCCJ-0003 for the regular CD-only edition since it won't be having a limited CD+DVD edition. Overall, this will be Shimamiya's fourth tie-in with the Higurashi no Naku Koro ni series.

Track listing

1. Chikai (誓い) -- 4:41

   Composition: Tomoyuki Nakazawa

   Arrangement: Tomoyuki Nakazawa, Takeshi Ozaki

   Lyrics: Eiko Shimamiya

2. OXISOLS -- 5:15

   Composition/Arrangement: SORMA No.1

   Lyrics: Eiko Shimamiya

3. Chikai (誓い) -instrumental- -- 4:36
4. OXISOLS -instrumental- -- 5:12

Charts and sales

Chart (2009)	Peak position	Total sales
Oricon Daily Chart	19	3,582
Oricon Weekly Chart	39