Yui, in line with Zeus' attempt to model the school after human schools, decides to introduce club activities, something that Thoth decides to make compulsory as well. While everyone is excited and interested, Hades refuses to participate in group activities. Yui later finds out that while Hades is constantly gloomy and introverted, he enjoys stargazing. Despite his claims that misfortune will befall her if she gets too close, Yui refuses to leave him alone, especially after he saves her from drowning...