Suu-chan the Antarctican is going on a date with a boy in her class. Himeno, Nozomi, and Kyoko are worried about her, so they quietly follow the couple... At the same time, Manami is on a date with a girl from her class, and they end up talking about her father...
but there are actually 
unspecified rules," right?
ولكن هنالك في الواقع قوانين
غير محددة." صحيح؟
aber es gibt doch ungeschriebene Gesetze.“
So in der Art, oder?
solo son reglas sin especificar, ¿no?
solo son reglas sin especificar, ¿no?
ma in realtà ci sono delle regole non scritte", no?
mas na verdade há 
regras não ditas", certo?
но потом оказывается, 
что тут много разных правил».