Yoshikatsu Ikeuchi and Yudai Takenaka of Novelbright collaborate on the song"Lonely.The song features Takenaka's melodic voice enhanced by the exhilarating groove and emotional atmosphere of Ikeuchi's music.The song is a collaboration with ChargeSPOT, a mobile charger installed at train stations and convenience stores, and is available on a dedicated app for a limited time.