|First appearance:||chapter 8|
Betsuki Eri (別木 えり Betsuki Eri) is a teacher at Kyoutoku Academy and the Potential Victim in the 3rd Arc of Dead Tube.
She first appears in "Chapter 8 - Chapter 10". Then, she makes a final appearance in "Chapter 11".
Betsuki is a beautiful 25 year old young lady with glasses, long red hair and large breasts.
She is very trusting in her students, she has said that that she believes in them and that she knows that they are good kids.
Betsuki is the target during chapter 8 through 10. She was given a stun gun and a pistol. She was attracted to a student named Kazuki (Kazu-Kun) who she later murdered and the thirteen others that raped her as a "game" to see if she was a virgin or not. Her type of man is the one who can cum and doesn't become soft. Machiya is the only man (other than Kazu) who can stay hard. As she gives Machiya a handjob, she is shot in the head by Mai.
Betsuki first appeared in chapter 8. She was asked personal questions, given 10,000 roses and recorded in the bathroom by Miwa Hanae. In chapter 9, she had her face photoshopped onto a porno and semen mixed into her drink, got punched in the face, and raped on a live broadcast by Nonomura and three other boys. In chapter 10, we learn that her type of man is the one who can cum and doesn't get soft. Machiya is the only man (other than Kazuki) who can stay hard. As she gives Machiya a handjob, she is shot in the head by Mai.
|Betsuki Eri's Death|
|Eri being shot by mai|