The most powerful dragon in legend is dead.
People say the one who killed him was the kingdom's youngest princess, whose nature was the gentlest and most timid.
* Gender-bender, magical world. When the princess is in a bad mood, she sometimes grows a virtual penis in certain situations.
* Although she can grow a virtual penis, she is entirely female, both biologically and in her own sense of identity.
* Irredeemably wicked, spoiled wife × utterly devoted, gentle simp. Reverse size difference, younger man. Pure romance. If this sounds like your kind of thing, read at your own risk.
Theme: Don't date across species.