Shooting Star

Takenouchi plays an aquarium employee named Kengo, who seems ordinary at first glance but actually possesses a secret that he would sacrifice everything in order to protect. Meanwhile, Ueto plays Risa, a young woman working in the sex trade in order to pay off her brother's debt, though her situation has led her to contemplate suicide. These two characters, both full of despair, meet each other and end up entering a contract marriage purely for its benefits. However, as they overcome various troubles, their relationship begins turning into true love

Female leads in both have terrible brothers who repeatedly mistreat them.
Female leads are both poor and in need of money, and work in sexualizing fields. Male leads eventually pay them themselves.
Male leads begin engaged to second female leads in both.

- similar amounts of angst and melodrama
- same type of slow burn romance with age gap
- two leads who are really good human beings in their own ways
- both have terminal illness plot line where requires someone sacrifices and gives their organ to save someone else's life