Since I do not have a picture of Hisao I can explain the brief details of his design. Hisao would be considered a bara but more chubby. He'd wear glasses and his dirty blonde hair would be tied in a man bun or ponytail. He also has a prosthetic left leg.

Hisao is a honest and modest man who can seem shy. He does have light social anxiety but it's not extreme. He seems to put himself down a lot but also seems to care a lot for the others especially Shinryo as he sees a lot of himself in him. He can sometimes have panic attacks which oddly revolve around his leg.

Hisao, despite being a large bara like male, would have a medium pitched voice. The actor would sometimes need to stumble over their words as him but also portray him as somewhat smart and capable. He can be cynical sometimes but that is triggered when Hisao has confidence.