Modern Tsundere Heroine

One or more of the heroine is a modern tsundere.

She has one side that is utterly deredere (lovestruck) towards the protagonist (and possibly everyone else).

She has another one that is extremely hostile towards the protagonist (and/or everyone else) and which often will use extreme violence towards him.

She's switch between those two frequently. Expect 2-3 switches within one minute at worst.

Contrast with Classic Tsundere, Coodere and Yandere.