Tatta Hitotsu no Koi (2006)
Directed By: Hitoshi Iwamoto
This is a tough question. Whoever made this question sucks. I’m kidding. I can’t pick just one, but it seems that I have to. So I will go with Tatta Hitotsu no Koi.
It’s a love story between a poor guy who helps run his father’s ship-repair factory and a pure-hearted, wealthy girl who is the heir of a popular jewelry chain store. The couple faces obstacles such as ridicule from friends and family due to their different social backgrounds.
I would personally recommend to people that are interested in Japanese dramas to watch this one. It has the Korean dramatics, but the storyline moves in a sufficient manner so there aren’t any unnecessary moments. It also nails the “rags to riches” plot concept.