Akari Neo, a childhood friend who can't be honest, attacks her male friend with no underwear on! Akari has been together with Kenichi since they were kids and she likes him, but she's not good at love and can't express it honestly. One day, the air conditioner in Kenichi's room breaks down and she naturally comes to cool off in his room, but she is shocked when she finds out that Kenichi has a girlfriend. However, Akari can't back down now and tries to get Kenichi, who loves butts, to notice her by showing off her radical no-panties look...