In the aftermath of the Trailblaze Mission in Honkai: Star Rail, there's a secret interaction where Robin talks about how cruel fate is that she and Sunday have to be apart. She subtly blames herself for leaving Sunday alone while she spreads words of Harmony throughout the universe. Meanwhile, the ex-head of the Oak Family is left alone in Penacony, experiencing things that falter his beliefs in Xipe, and nurtures the faith towards Ena, the Aeon that once existed, but gets absorbed by Xipe due to their similar values.