Makoto and Kyoko get drunk during the former's 18 birthday party and they have a night of passion. Kyoko falls pregnant as a result, leaving the pair to make a big decision on their future as well as their unborn child's future.
Misaki and Usagi are helping Takahiro and Manami out when she gets hurt in a earthquake. The pregnancy brings difficulties and obstacles so let's see how they will cope.
(based on a story I read on fanfiction)