source: Eromanga Sensei | gifとanime 、 anime girl

verb |pərˈvərt| with object

alter (something) from its original course, meaning, or state to a distortion or corruption of what was first intended:

…を曲解する, こじつける, 歪める(distort)

e.g. he was charged with conspiring to pervert the course of justice.

lead (someone) away from what is considered right, natural, or acceptable:

…を正道［真理］から逸脱させる, 〈人･心〉を堕落させる(corrupt)

e.g. Hector is a man who is simply perverted by his time.

noun |ˈpərvərt|

a person whose sexual behavior is regarded as abnormal and unacceptable.

堕落者; 背教者; 変質者, 変態, 性的倒錯者(｟くだけて｠ perv)

perverter |pərˈvərdər| noun

perversive adjective

late Middle English (as a verb): from Old French pervertir, from Latin pervertere, from per- ‘thoroughly, to ill effect’ + vertere ‘to turn’. The current noun sense dates from the late 19th century.