That really really... bad honestly, she is the only i hate with all my almight, if i make a rank about my most hated monster girl are like this:Yes, unfortunately you need to max out and bond with every single demon... even her.
Archeny<Titanoboa<Echo<Empuse(bcuz she kill everyone on the underground base)<Daji but with very low esteem (also her multiples forms are a little bit +),<Camazots<Lampas<Mukuro<Barghest<Rabbit Mother<Lucy<Nina.
Basically everthing until Lampas, i really dont like it... Damm even MGQ Paradox have better monsters.
Still i went complety blind first time and get the B Neutral ending so dont know if i miss some ohter monster girl.
But i mean to get her if i start from the Beginning?, doing the right things of course (following the guide).