Now that Leah doesn't have any leverage over Sera anymore, it's interesting to see their dynamic shift. The rivalry isn't completely gone, but the same traits that initially made Leah a threat now make her seem more like over confident newbie. I don't think this serious senpai side of Sera is really something we've seen before, and I enjoy how much Sera's advice to Leah seems to be rooted both in her own past as a saint, but also in her conversation with Nat last chapter.
Thanks for the TL!