The club's advisor, Yoriko Matsumoto, tries to get used to being called "Mom" by her students, whilst the girls look up whale facts. Later, Yui ends up spending the entire night reading a book, leaving her irritable and crazed due to lack of sleep. As she eventually collapses and rests in the nurse's office, Chiho feels a sense of joy when she is able to take a photo of her sleeping face.