Season 1 Episode 5: Adviser!
B.C. Rich Mockingbird (black colored) Bass Guitar
Della ( (stage name) is a former member of the ) デラ ( でら ) Light Music Club of Sakuragaoka High School and Death Devil's bassist. She first appeared in the episode Teacher!, where she played with her band at the wedding of another former member, Mihoko.
Visit!, she visits Sawako Yamanaka at home with Norimi Kawaguchi, Mihoko and Kawakami after she heard Sawako had become ill.
Della has shoulder-length light brown hair. In Teacher!, she wears her black Death Devil rock outfit, but she is also seen wearing normal clothing. Her hair was much longer when she still visited school.
Della as a member of the Light Music Club (sitting in the left side of the bench)
Della alongside her band
Death Devil posing for a fan
Della on stage
Della and her band in the yearbook
Although she made her actual debut in Teacher!, she can be seen in an image during the episode Adviser! that shows Death Devil while they still visited school, as well as in Sawako's flashbacks.