Una pareja de cucos, 4

Jealousy takes over Erika when she sees Nagi and Hiro going on a date, so she wants to go on a date with Nagi too. All these entanglements will end up affecting our boy who will feel more and more disconcerted... To make matters worse, Hiro will end up discovering that Nagi and Erika... They are engaged! It seems that there is no turning back and that this has ended up becoming a love triangle.