Muteki na Heart

"Muteki na Heart"
Standard edition/digital download cover
Single by Mai Kuraki
from the album Mai Kuraki Best 151A: Love & Hope
Released	August 27, 2014 (2014-08-27)
Recorded	2014
Genre	J-pop
Length	3:25
Label	Northern Music
Songwriter(s)	Mai Kuraki Yue Mochizuki Takahiro Hiraga Hirokazu Tajiri Shun Sato
Producer(s)	Mai Kuraki, KANNONJI
Mai Kuraki singles chronology
"Wake Me Up" (2014) "Muteki na Heart" / "Stand by You" (2014) "Yesterday Love" (2017)
Music video
"Muteki na Heart" on YouTube

"Muteki na Heart" (無敵なハート, lit. "Invincible Heart") is a song by Japanese singer songwriter Mai Kuraki, taken from her third compilation album Mai Kuraki Best 151A: Love & Hope (2014). It was released on August 27, 2014, and served as the theme song to the Japanese animation Case Closed. It was released as a double-A side with "Stand by You".

Music video

A short version of the official music video was first released on Kuraki's official YouTube account on October 10, 2014. As of August 2022, it has received over 1,090,000 views on YouTube.

Track listing

Standard edition/Limited edition A/FC & Musing edition

No.	Title	Writer(s)	Arranger(s)	Length
1.	"Muteki na Heart"	Mai Kuraki Yue Mochizuki Takahiro Hiraga	Hirokazu Tajiri Shun Sato	3:25
2.	"Stand by You"	Kuraki Akihito Tokunaga	Tokunaga	5:26
3.	"Muteki na Heart" (Instrumental)	Kuraki Mochizuki Hiraga	Tajiri Sato	3:25
4.	"Stand by You" (Instrumental)	Tokunaga	Tokunaga	5:22
Total length:				17:39

DVD (Limited edition A)

No.	Title	Length
1.	"Muteki na Heart" (music video)

Limited edition B

No.	Title	Writer(s)	Arranger(s)	Length
1.	"Stand by You"	Kuraki Akihito Tokunaga	Tokunaga	5:24
2.	"Muteki na Heart"	Mai Kuraki Yue Mochizuki Takahiro Hiraga	Hirokazu Tajiri Shun Sato	3:27
3.	"Stand by You" (Instrumental)	Tokunaga	Tokunaga	5:24
4.	"Muteki na Heart" (Instrumental)	Kuraki Mochizuki Hiraga	Tajiri Sato	3:24
Total length:				17:40

DVD (Limited edition B)

No.	Title	Length
1.	"Stand by You" (music video)

Digital download

No.	Title	Writer(s)	Arranger(s)	Length
1.	"Muteki na Heart"	Mai Kuraki Yue Mochizuki Takahiro Hiraga	Hirokazu Tajiri Shun Sato	3:25
2.	"Stand by You"	Kuraki Akihito Tokunaga	Tokunaga	5:26
Total length:				8:51

Charts

Weekly charts

Chart (2014)	Peak position
Japan (Oricon)	5
Japan (Japan Hot 100)	6
Japan (Japan Hot Animation)	3

Monthly charts

Chart (2014)	Peak position
Japan (Oricon)	21

Year-end charts

Chart (2014)	Position
Japan (Oricon)	240

Certification and sales

Region	Certification	Certified units/sales
Japan (RIAJ)		29,517 (physical sales)

Release history

Region	Date	Format	Label
Japan	August 27, 2014	CD single (Standard edition)	Northern Music
		CD single/DVD (Limited edition A)
		CD single (Limited edition B)
		CD single (Musing & FC edition)
		Digital download