Warning. Major spoilers ahead.
In this episode, Wakaba misses her initial engagement party with her co-workers because she was still consoling Shota. Afterwards, Shindo asks Wakaba to have an engagement party with both of their parents. However, Wakaba is reluctant, thinking that her dad will give Shindo's family a negative reaction. Wakaba does send her dad a telegram invitation, but thinks her dad will never be able to make it. To her surprise, Wakaba's dad does make it over to Tokyo. Wakaba's dad is mentally handicapped, struggles to pay debts, and is often fooled by getting into more debts. Wakaba doesn't think highly of her dad. Also showing up is a debt collector, whom Wakaba's dad owes money to. However much to Wakaba's surpise, not only does Shindo's family pay off Wakaba's father's debt, they actually preferred to help Wakaba. Later, Shota gives Wakaba a checkbook from her dad, that had 2,705 Yen deposits each time. The total didn't amount to much, so Wakaba initially dismissed it. That is until Shota finds out that 2,705 was Wakaba's birthweight in grams. Wakaba then recognizes how much her father cared for her.
This episode was somewhat mixed for me. I liked that they developed some story with Wakaba's father, and felt it was necessary for Wakaba's development. This episode had some heartwarming moments. However, the major issue I have is that Zenkai Girl is starting to fall into the trap of waiting until the last possible moment for the romance between the two leads to blossom. This kinda annoys me sometimes with J-Dramas. While some J-Dramas that wait until the near end for the leads to get together, it does kinda get tiring when you constantly have to wait. However, I still do like this series, particularly the character development of the two leads.