Upsidedown Cake: Anastasia & Sindra: Hi-Res & PSD (Patreon)

BCC Sindra is confident, dominant, and hates the idea of clothes. So UDC Sindra is a naive succubus constantly failing to infiltrate Anastasia's school with cutesy outfits since she's not confident enough in her own looks. Anastasia, meanwhile, is a loving and kind woman who diligently protects her students by any means necessary. Instead of getting a super curvy body for selfish reasons, so changed herself to be a better protector for her school.