Guts Man is a Robot Master created by Dr. Light with immense physical strength and durability. His design features blocky angular shapes, gray and yellow armor plating, and small yellow eyes. His personality is straightforward, no-nonsense, and values hard work and discipline. His friend and rival is fellow Robot Master Cut Man.

Hot-tempered, Unreasonable, Impatient, Passionate

Sidereal is a lonely Exe that spends long hours, days, weeks, however long just waiting for a friend. Starved for attention, he would do or say anything possible just to keep anyone's company. He wants anyone to be his best friend. Forever.