Perfume will release their new single "Mugen Mirai" on March 14. 

"Mugen Mirai" is the main theme song for the movie 'Chihayafuru' to open in theaters on March 17. The single will be released in three different types: Regular Edition (CD-Only), Limited Edition (CD+DVD), and Chihayafuru Edition.

As the coupling track, the Limited and Regular Editions will include "FUSION", which is the tie-up song to NTT Docomo's project 'FUTURE-EXPERIMENT VOL.01 Kyori wo Nakuse.' Meanwhile, the Chihayafuru Edition will contain "FLASH", which was the theme song for the previous 'Chihayafuru' film in 2016. 

The track list can be seen below. 

01. Mugen Mirai
02. FUSION
03. Mugen Mirai -Original Instrumental-

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[Chihayafuru Edition]

01. ????
02. FLASH
03. ???? -Original Instrumental-