They spend a day looking after a relative's kid. It's cute.
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A flashback to their first date. It's cute.
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Previous claims of pregnancy are a misreading. But they're thinking seriously about it.
Hajime: How about Shinji if it's a boy and Rei if it's a girl?
I think it's hard to have serious buildup on anything over 7 minutes of runtime.
Kaoru has a nightmare about her life when she was single. It's good to have a partner.
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It's Christmas, and Kaoru has to work. Hajime will hang out with friends. (Oops, he doesn't have any.) Can he hang out with her friends? It sucks being the only one without their spouse.