Kure-nai - Season 1 Episode 3 Face of an Imposter

Murasaki appears at Shinkuro's school and wanders around, investigating high school students' life and culture. She also ends up meeting Yūno Hōzuki, who she already dislikes. Later at night, Murasaki discovers Shinkurō has snuck out and follows him. She gets caught up in the middle of a violent confrontation and gets hurt. As a result, Shinkurō goes berserk and quickly cleans up the scene with the Hōzuki horn. Murasaki wakes up the next morning and offers Shinkurō breakfast to apologize for interfering with his job.