Birthday: January 1

Nobunaga is a childhood friend of Yūto who attends the same private high school, though is in the class next to his. He has a cheerful and openhearted personality, gets very good grades, and is considered a bishounen by the female students. However, he is a hardcore otaku and is familiar with the layout of Akihabara. He is extremely famous in various places in Akihabara. Due to his enormous amount of purchases, he is known as "Emperor Caesar" at the Animate store, and is one of three people who possesses the golden Animate card. At a maid café where Haruka once worked part time called "@Home~Café," there is a picture of him shaking hands with the manager of the café, framed in gold with the caption "Welcome home, our greatest master" hung in the center of the café.