|Double Seven Series 3|
|Release Date||March Issue, 2013|
|On Cover||Shippou Takuma, Shiba Tatsuya|
Double Seven Series 2
Double Seven Series 4
Double Seven Series 3 is on Dengeki MAGAZINE Volume 30.
Double Seven is a part of second year refers to the short segments written by Satou Tsutomu released in Dengeki Bunko MAGAZINE in a timeline when Tatsuya and Miyuki reached their second year in First High School.