|Double Seven Series 4|
|Release Date||May Issue, 2014|
|On Cover||Saegusa Mayumi, Juumonji Katsuto|
Double Seven Series 3
Double Seven Series 5
Double Seven Series 4 is on Dengeki MAGAZINE Volume 31.
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.