Angel Guts: Red Classroom (天使のはらわた 赤い教室 Tenshi no harawata: Akai kyōshitsu) is a Roman Porno film directed by Chūsei Sone and starring Yūki Mizuhara. Mizuhara won the Best Actress award at the Yokohama Film Festival for her performance in this film. It is the second film in the Angel Guts series.