An Angel Among Sins - Husk x Fallen Angel!Reader

'You, Y/N, is hereby sentenced to remain in Hell until you have learnt to love and the person you have learnt to love reciprocates your feelings..'
Y/N meets a cat demon named Husk, who helps her in learning the customs in Hell, but will Husk be able to protect her from a certain radio demon, with a plan to inherit her immense power as a fallen angel?