Tonari no Aku no Ookanbu!

is a Japanese light novel series written by Saeki Yousuke, with illustrations by Genyaky. The series began publication on September 10, 2022 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
The apartment next door is a beautiful silver-haired woman!? One day, the people who moved into the room next to me were a sexy silver-haired foreigner and her daughter. Carry your luggage, share your clothes, and your dream neighbor life begins...! "Unexpectedly, the true identity is a former evil leader!?"