The attack that Eri uses on Harima - she knees him in the face - is a wrestling move known as the "Shining Wizard".
Yakumo does not appear at all in this episode.
Harima: Umm.. a lot happened, but I'm back again. So... I'm home!
Itoko: Who the hell are you?
Harima got his letter of resignation mixed up with his love letter for Tenma, which means that Tenma got his resignation letter and 2-C's teacher...
Harima finally decides to return back to his apartment.
First review for this episode:
Onee-san, Harima is freeloading at her place.
Tenma and Karasuma, on curry date?
Second review for this episode:
Nara Kentarou, was originally the main character
Karasuma and Tenma, meet again on a rainy day
Harima - finally back at school, feels like Dostoyevski
The song that plays during the scene between Harima and Tenma at school is called "Kun he ~Kaze ni Nosete~", which, when translated, means "To You ~Carried by the Wind~". The song happens to be sung by Harima's voice actor, Takahashi Hiroki.
The song has been played in the background in previous episodes, but this episode is the first time in which the lyrics are heard.
Harima accidently said "I love you" to Eri. Tae comes and busts Harima out of that predicament by pretending to be his girlfriend. However, the relationship between Eri and Harima becomes very rocky.
Harima befriends many animals.