Aoi Asahina is known as the Super High School Level Swimming Pro, and is a graduate of the 78th class. At the time of this, she is believed to be around 21 years old. She survived the original killing game that this is based off of, but things could be different this time around.

Aoi is very friendly, and is quick to introduce herself and make new friends. She can be a bit air-headed, even forgetting people's names. She has a bit of a tendency to jump to conclusions, which leaves her vulnerable to manipulation and misdirection. She is also prone to getting emotional, giving her a strong sense of belief in her friends. She's quite sensitive to death, not exactly being the best person to participate in a killing game. Aoi is the mood maker, able to change the atmosphere around her quickly. Despite what people say, she is quite reliable.

Aoi should have around a medium to medium high voice for a female, just nothing too high or low. She's hyper and confident most of the time, but the actor should still be able to display many emotions. One thing that the actor should definitely be able to do is both shout confidently, and cry.