Male. Sly and gentle personality. Eccentric and off-the-wall. He is so skilled with machinery that he builds robots capable of independent thought and feats beyond human ability, but his excessive talent sometimes leads to him creating things like exploding robots. While it definitely shouldn't be happening, the sound of explosions can be heard at least once a day at the Wonderlands Cafe... He built Nene-Robo for Nene, who suffers from severe shyness. He and Nene are childhood friends.

Female. A soft exterior with a strong inner core. Although she is timid and introverted, she is extremely passionate about her own growth. One of the few normal people in this cafe. Sharp-tongued. She loves playing games and is very good at them. However, due to her low physical stamina, she isn't great at games that require physical movement. She and Rui are childhood friends.

Female. Cheerful and bright personality. She always has a dangerously high level of energy and is perpetually positive. She shouts "Wonderhoy!" whenever she's excited or having fun. Her physical abilities are extraordinary. She uses a lot of onomatopoeia and mimetic words when speaking, a dialect known as "Emu-speak(?)." Naturally, most of the Wonderlands Cafe staff understand Emu-speak. She is the daughter of a wealthy family. She is very Wonderhoy (What is that? Being Wonderhoy is just being Wonderhoy).

Male. Confident personality. However, he has a mature side, as he is quick to apologize when he realizes he is in the wrong. He is frequently used as a test subject for Rui's inventions. Eccentric. His voice is (dangerously) loud and noisy. Yet, he occasionally shows flashes of common sense, often spending his time trying to rein in Emu and Rui when they cause chaos.

A robot Rui built for the shy Nene. However, it has an unsettling number of functions beyond just singing and dancing, including independent thought, firing beams(?), extracting juice, charging phones, judging games, recording, cooling, security alarms, and translation. It tends to be sharp-tongued(?). Currently, it takes orders at the cafe on behalf of the shy Nene and is even used as a substitute for the coffee machine. It could be said that this robot alone is supporting this collapsing cafe.