I'd be happy to be Shinji right now. Unlike Takayuki and Mitsuki who won't be seeing Haruka and Akane anymore, Shinji knows a soon-to-be famous swimmer, and a children's story author. He can pawn their autographs for tons of cash.
Anyway, I thought it was a pretty good ending. I never played the game but i heard that there is a picture of Mitsuki reading Haruka's story to her baby. This is also pretty funny to me because they could have had a baby at any time. Since the story had to be like that, they had a baby at the perfect time
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