SS501 member Kim Hyung-joon and kid brother Kim Ki-bum (U-KISS) have announced their entrepreneurial ambitions with the start of HnBcompany, a character design brand.

The duo's first product is "PiroPiro," a bear with dark circles under its eyes, whose image has been transformed into a neck cushion and small back pillow.

The bear is supposed to be a cuddly representation of tired office workers, students, celebrities, and anyone else who has ever felt the strain of work.

The two brothers have both been personally engaged in the creative development of PiroPiro, according to a statement released by the new company. The products have also undergone a testing period of more than three months.

First-run orders for the cushions have already sold out, said the statement, and more are being made to meet demand levels both locally and internationally.

HnBcompany stands for "Happy n Bright," the released added.

More information about the first character can be found at www.piroprio.co.kr.