A detective story about a murder on a train based on a series of young-adult novels for women by Yamaura Hiroyasu. Seiko, while suspended from school (she has been bullied) goes to Nagasaki, where she finds herself involved in a murder mystery. (Source: Shoujo & General Weblog)

With dead and lifeless eyes, Rachel Gardner wishes only to die. Waking up in the basement of a building, she has no idea how or why she's there. She stumbles across a bandaged murderer named Zack, who is trying to escape. After promising to kill her as soon as he is free, Rachel and Zack set out to ascend through the building floor by floor until they escape. However, as they progress upward, they meet more twisted people, and all of them seem familiar with Rachel. What is her connection to the building, and why was she placed in it? Facing a new boss on each floor, can Rachel and Zack both achieve their wishes?

Nell is a young girl living with her grandfather, Mr Trent, the owner of a shop in London. As he couldn't payback a loan he made, he has to flee with Nell. They decide to search for Nell's mother, who is living somewhere in Great Britain...

A new special episode that was distributed to those who purchase all three Blu-ray box sets of Sayonara Zetsubou Sensei series on January 31, 2012.