Two popular anison singers - LiSA (Demon Slayer: Kimetsu no Yaiba theme songs) and Uru (Yashahime: Princess Half-Demon ED theme) perform together in the latest CM for Sony's noise cancelling earphones series "WF-1000X." The song featured in the clip, "Saikai (produced by Ayase)" is written/composed/arranged by a well-known vocaloid song creator Ayase ("Sentensei Assault Girl" by Hatsune Miku). Check out the special collaboration after the jump!