Engaged to the Unidentified Season 1 Episode 5 This Woman Has Given Birth?

A lovely young girl in Japanese clothing arrives. Although she seems too young for it to be true, she is apparently Mashiro's mother, Shirayuki. Kobeni is nervous while Mashiro is tense. Benio is in anguish over Shirayuki's youthful appearance, but eventually decides that "she's got it." Meanwhile, a shocking truth comes from Shirayuki's lips. Kobeni is distraught, uncertain of whether what she's been told is the truth or not.