Episode Title:
There Are Eight-Year-Old Sages and 100-Year-Old Kids.
Episode Description:
Becky is invited to an island on the southern tip of Japan to take part in an archeology expedition, though when she arrives she finds the Class 1-C girls there. The expedition team finds a bunch of Mesousas and must determine which one is real. Later, the team falls in a hole. The professor tells the girls about Becky's time at MIT.
