Hwangjaui Bomo, Teukgineun Amsarimnida

A year after her lover stabs her in the back, legendary assassin Kyla Angel wakes up in the body of Rachel Brown, a nanny tasked with caring for a neglected prince and princess. Knowing the man who betrayed her is still out there, Kyla must bide her time before she can sneak out of the palace and get revenge. But in the meantime, she must face her deadliest challenge yet: childcare. Now it's up to Kyla to figure out how to soothe a crying toddler with hands meant for throwing daggers and slitting throats... (Source: Tappytoon) Note: First released in English, with the initial eligible release in Korean.