At first, Yamai comes off as a social, polite and sweet girl. But it doesn't take long for her to show her true personality underneath; in reality, Yamai is an incredibly spiteful, perverse and dangerous person.

Like the rest of Itan's student body, Yamai deeply admires Komi and sees her as a goddess but is also incredibly lustful towards her to very disturbing extents. Furthermore, she's unstable even with her own desires; wishing to touch and caress Komi but then restraining herself at the same time. As is common for many Yanderes, Yamai is kind and hospitable towards Komi, affectionately referring to her as Komi-sama, but towards others she can be very unstable, frightening and violent. Despite her lustful attitude, Yamai does hold true care and affection towards Komi. Even after befriending Komi and learning of her social anxiety, Yamai still lets her lustful attitude flash through on multiple occasions. She also becomes more sneaky and tactile in planning out scenarios where she can be perverted towards Komi, only to have them thwarted.

If you could sound similar to her English VA, Cristina Vee, that would be great, but it is not required!

English VA Example: https://youtu.be/1m4m8CNCEis -spread throughout this clip