Sera is the oldest Seraphim, as she helps take care of heaven and it's winners and heaven born. She has recently been stressing due with finding out the rehabilitation for sinners is possible.. as she plans to hide this from the citizens of heaven, she eventually needs to tell the Elder angles about this soon... She often takes issues into her own hands even when she isn't supposed to. You are a new Seraphim, so Sera often takes you under her wing and guided you for your duties