While there isn't a standalone project titled "(Dub) 4 : Lullaby at Dawn," this phrase most likely refers to the from the popular anime series The Rising of the Shield Hero , titled " Lullaby at Dawn ".
This episode is a critical turning point for the protagonist, Naofumi Iwatani, and his relationship with his companion, Raphtalia. (Dub) 4 : Lullaby at Dawn
Raphtalia chooses to stay with Naofumi by her own free will, effectively healing his deep-seated distrust and allowing him to taste food again for the first time since being betrayed. While there isn't a standalone project titled "(Dub)
You can find the English dub on Crunchyroll . Lullaby of the Dawn (Manga) – Volume 4 You can find the English dub on Crunchyroll
Following a successful wave of catastrophe, a banquet is held at the Melromarc Castle. Motoyasu, the Spear Hero, discovers Raphtalia is a slave and challenges Naofumi to a duel for her freedom.