Piko has blond hair and forest green eyes. He is seen often smiling and has a warm, gentle aura. His hair is cropped short at the back in the same level, with two bangs that frame his face and give him a feminine appeal. His shorter bangs are softly swept to a side.
During the end of episode one, after having a fight with Shoggun (aka Tamotsu), Piko cuts off his longer bangs, most likely due to feeling betrayed by him, and wanting to "return to being a boy". After the two make up, his hairstyle reverts back to original.
Piko's clothes' change as time passes. He is seen crossdressing most of the time. His most used attire is a light fuchsia pink t-shirt and matching grape violet tight trousers that outline his gluteus. When living with Chico and Coco, he starts wearing actual skirts and cute dresses and hair accessories
He is kind and quite clumsy, as seen when he spills tea on Shoggun. He has a carefree life and enjoys simple things. However, he is quite perverted, as he took Chico's virginity and had sex with him after seducing him. Sex with Chico was consensual, at least. Pico is the type of person to listen to others. He is smiling most of the time. The only times he was seen mad or worried was in episode 1 and episode 3, when Chico started sleeping with Coco, which made Pico a bit depressed.