Future diary

A pink-haired anime character with a determined expression appears in a close-up, then is shown lying on the ground with a wide-eyed, shocked expression while holding a phone, followed by a scene where the character is covered in red splatters while wielding a weapon, then a close-up of the character's eye with a glowing pink ring, then the character standing next to a smaller character with dark hair who looks surprised, and finally a close-up of a character with white hair and a dark mask.