"Akeboshi" (明け星, lit. "Morning Star") is a song recorded by Japanese singer LiSA, released on October 18, 2021. The song was featured as the first opening theme song for the anime Demon Slayer: Kimetsu no Yaiba – Mugen Train Arc. It charted at No. 1 on the Oricon Daily Digital Singles Chart with 36,062 downloads in its first day release. The song also peaked at number one on Japan Hot 100 and number 107 on Billboard Global 200.