Kumiko Yamaguchi is smart, enthusiastic, and ready to start her dream job as a math teacher at Shirokin Academy. But as her first day opens on atrocious students and cowering teachers, Kumiko realizes that the all-boys high school is a cesspool of delinquents with no intention of improving themselves. However, what her rowdy students don't know is that behind her dorky facade, Kumiko is the acting head of a powerful yakuza clan, and she has the skills to prove it! Capable of overpowering even the strongest of gangsters in seconds, Kumiko must keep her incredible strength and criminal influence a secret in order to keep her job. Unfortunately, with the vice principal constantly trying to get her fired and Shin Sawada, the leader of her class of delinquents, suspecting she's stronger than she lets on, Kumiko has a difficult teaching career ahead of her.

Special episodes added to DVDs and Blu-rays.

Unaired episodes included in 11th & 12th BD/DVD volume of the Persona 5 the Animation. These volumes contained the two Persona 5 the Animation TV Specials ("Stars and Ours" & "Dark Sun..." respectively) rather than episodes of the regular TV series. #1: Few days after battle against Akechi. Ren, who was helping out with the cafe, saw a cross word puzzle magazine on the table and saw Akechi's handwriting besides a solved crossword "Seigi no Akashi (Sign of Justice)." In order to investigate the meaning, he walks around the street under the cold winter snow while thinking back at the memory with Akechi. The meaning that revealed and Akechi's feeling is... #2: Valentine's Day Omnibus Story featuring Ren Amamiya.

Unaired anime-original OVA bundled with 12th volume of the Hitsugi no Chaika novel.