Kumiko Endô

After Ken misses his wedding in Las Vegas, his angry girlfriend returns to Hong Kong to find him, but instead finds their interior designer and a bunch of Yazuka thugs. What's happened to her fiancée?

Katakura Kippei is in every way a high school playboy. Spending his days flirting with any female he can see, responsibility is the last thing on his mind. Life takes an unexpected turn for him as one day he returns home to find himself with the fulltime task of caring for his 5-year-old cousin. (myanimelist.net)

It is a remake of Ultra Q, the first of the Ultra Series. It retains the same swirling effect for the title card, but with the words "Dark Fantasy" added underneath, the title also remains black and white. The final episode confirmed this is not a sequel, rather another time line in which the original series is portrayed as a television show. (wikipedia)

The story revolves around Ryota Hironaga's family where the parents have been divorced for almost as long as he can remember. He was raised by a single mother as a result. There was an empty seat at the dinner table as a result, which he and his sibling seek to fill by searching for their father. (imdb)