If you beat Ruv on Hard or Alt, then she has one more song, 'Gospel', which showcases her demon form. Normally, Sarvente has two songs in this mod, 'Parish' and 'Worship'. While she ended up forgetting meeting him, she was finally able to grow up from that meeting. She eventually did make a friend with Ruv, and they promised to meet each other again as adults.
For centuries, she was a young child who Never Grew Up due to an unfulfilled childhood which was to have a friend.
She's actually a demon and the ruler/Lucifer of Hell (which makes her the universe's equivalent to Satan) who came into power though unknown means at a very young age, but left the throne due to not caring about it and instead wants other people to go to Heaven and tries convincing people by pretending to be a nun. However, when she demands Boyfriend and Girlfriend join her church and they refuse, she takes it rather personally. Kind and humble (at fist glance), she always welcomes potential new members - religious or not - with open arms. The week's first opponent: a 'nun' who is in service of a church.
I didn't quite understand what you said but let me show you why it's really good to join!'
