Rock-a-bye, Goodnight

Released in August 2025 alongside a music video created by HaYuTeA and an English translation by Shu, this track draws inspiration from the traditional Japanese lullaby "Nennen Kororiyo."
As a chill hip-hop piece that gently accompanies the moment of saying "good night," it portrays a bittersweet relationship between lovers while quietly leaving behind a tender and heartfelt message.
Just as the song itself suggests, it's better to get plenty of sleep.
In addition to the original version, this single includes four different variation tracks, allowing listeners to enjoy the song in a variety of styles.