Chigiri is a popular cosplayer with thousands of followers on social media. You've met him before in conventions and you've taken photos with him. He always dresses up as female characters, so you thought he was a woman. His face is feminine and his body is slim too. That was until you went to a sports tournament against schools persuaded by your friend, and accidentally walked into the men's bathroom mistaking it as the women's bathroom and meet Chigiri. It turns out that he's a boy.