Dengeki Daisy

Masuda is the manager of Ohanabatake, a Western style tea house, often seen wearing a bandana and apron. Both Kurosaki, Riko, and a number of characters refer to him as "Master". Despite his cordial demeanor and tendency to tease Kurosaki about his relationship with Teru, the Master can be surprising frightening; Kurosaki admits that the Master is far…

Riko Onizuka was a member of the team Teru's brother led as well as his previous girlfriend; she has a good friendship with Tasuku Kurosaki and often subtly serves as his adviser on his situation with Teru. She is the current housemate of Teru as well as Kurosaki's neighbor. She is also the current school councilor at Teru's high school. (Source: Wikipedia)

Souichirou Kurebayashi is the deceased brother of the main character, Teru Kurebayashi. Little is known about him other than he was a very talented computer engineer and led a team of engineers that included Tasuku Kurosaki and Riko Onizuka, he supposedly made some software that would sell for a very high price before his death which mysteriously…

Akira is a black haired boy who looks very much like Souchiro (Teru's older brother). He is around Teru's age, has slanted eyes, and is about 170 centimeters tall. His build is lithe, like a cat's. He also carries around a yo-yo. He also has extraordinary arithmetic skills and he has the ability to decipher a complex code just by simply looking at it.