In this chapter, we're introduced to a new character named "San." He's a guy who's in love with a girl named "Sada." We're also introduced to "San's lover," a guy named "Hiroshima," and "Atsuya" . We learn that Hiroshima and Atsuya are in love, too, and that they're both "boring" and "dull." We also learn that "San" is the guy who "interrupted" the two of them on their first date.