On a hot summer night, Ms. Shimizu pays a surprise visit to Hideki and Chii, and wants to STAY OVER(!!) Is Hideki going to have his first night of passion, or is there some other reason?

Chii is still missing, and Hideki is enlisting as much help as he can to find her. A strange e-mail image gets sent to him and Shinbo from an untraceable email address. It turns out that this is a map for the house of Chii's abductor, Dragonfly, and he is carrying out research to find out what Chii is.