Hana Yori Dango 2 (2007)

Simplest way to say it is that they both a rich men/man and a poor woman. Their lives are changed by eachothers impact!

This second season of Hana Yori Dango picks up right after Domyoji leaves for New York. After confessing to Domyoji, Makino has not spoken to him for a year. Rui and the other members of F4 try and help Makino meet Domyoji again by going to New York for the christmas holidays. Though F4 and Makino meet Domyoji again, he has become a completely different person, and so they leave for Japan. Some time later, Domyoji's mother annouces that they will be returning to Japan. There, they hold a giant super-rich and classy birthday party for Domyoji and announce something very important. Domyoji, like in the first season, is engaged to a rich girl and heir, Shigeru. The only difference is that they are to be wed soon. What will Makino do?
On the side, Rui begins to fall in love with Makino. Will this become a love square?

This second season of Hana Yori Dango picks up right after Domyoji leaves for New York. After confessing to Domyoji, Makino has not spoken to him for a year. Rui and the other members of F4 try and help Makino meet Domyoji again by going to New York for the christmas holidays. Though F4 and Makino meet Domyoji again, he has become a completely different person, and so they leave for Japan. Some time later, Domyoji's mother annouces that they will be returning to Japan. There, they hold a giant super-rich and classy birthday party for Domyoji and announce something very important. Domyoji, like in the first season, is engaged to a rich girl and heir, Shigeru. The only difference is that they are to be wed soon. What will Makino do?
On the side, Rui begins to fall in love with Makino. Will this become a love square?

See the original japanese version and you can see the deffrence with yourself and i purposely recommanded second season since it's second here too but if you watch the hole Hana Yori Dango you will see the huge deffrence.

This second season of Hana Yori Dango picks up right after Domyoji leaves for New York. After confessing to Domyoji, Makino has not spoken to him for a year. Rui and the other members of F4 try and help Makino meet Domyoji again by going to New York for the christmas holidays. Though F4 and Makino meet Domyoji again, he has become a completely different person, and so they leave for Japan. Some time later, Domyoji's mother annouces that they will be returning to Japan. There, they hold a giant super-rich and classy birthday party for Domyoji and announce something very important. Domyoji, like in the first season, is engaged to a rich girl and heir, Shigeru. The only difference is that they are to be wed soon. What will Makino do?
On the side, Rui begins to fall in love with Makino. Will this become a love square?

This second season of Hana Yori Dango picks up right after Domyoji leaves for New York. After confessing to Domyoji, Makino has not spoken to him for a year. Rui and the other members of F4 try and help Makino meet Domyoji again by going to New York for the christmas holidays. Though F4 and Makino meet Domyoji again, he has become a completely different person, and so they leave for Japan. Some time later, Domyoji's mother annouces that they will be returning to Japan. There, they hold a giant super-rich and classy birthday party for Domyoji and announce something very important. Domyoji, like in the first season, is engaged to a rich girl and heir, Shigeru. The only difference is that they are to be wed soon. What will Makino do?
On the side, Rui begins to fall in love with Makino. Will this become a love square?

ML is an actor but not too popular anymore & broke so he rent a room in FL house.
FL is a nerdy geeky/otaku girl who like to imagine & day dreaming about romance with her favorite manga/comic book character. Remind me of Rainie Yang & Jiro Wang drama....& still 1 of my favorite drama....If you like this genre this is a must watch romance comedy drama....

they have a lot of similaritiesn in the setting and the plot, but a different development. They have the same level of emotions though

Serinuma Kae is a chubby high school girl who loves BL manga. One day her beloved character dies, and the girl falls into depression. For a long time, she cannot even eat, which leads to significant weight loss. But to her own surprise, the updated Serinuma becomes very popular at school, and she immediately has four handsome admirers at once.

(From my recommendation for Hanadan Season 1)
The male lead is a cold rich guy who finds himself drawn to a poor girl who doesn't want anything from him. He tries to give her things that other girls would swoon over and when she declines the gifts he is left confused and even more interested in her than before.

Oh and his family disapproves and he ignores them. Also the girl, despite being skittish and a bit strange seems to be well liked by those who get to know her or watch her closely.

(Now how specifics about similarities to Hanadan 2)

The male lead loses his memory starting from the time he met the female lead due to an accident. His family tries to keep him from hearing about the girl and interacting with her but so far that's not working out well (I haven't finished the series yet). Oh and it is revealed that someone very close the the guy betrayed him and from that he has to overcome deep scars.

This second season of Hana Yori Dango picks up right after Domyoji leaves for New York. After confessing to Domyoji, Makino has not spoken to him for a year. Rui and the other members of F4 try and help Makino meet Domyoji again by going to New York for the christmas holidays. Though F4 and Makino meet Domyoji again, he has become a completely different person, and so they leave for Japan. Some time later, Domyoji's mother annouces that they will be returning to Japan. There, they hold a giant super-rich and classy birthday party for Domyoji and announce something very important. Domyoji, like in the first season, is engaged to a rich girl and heir, Shigeru. The only difference is that they are to be wed soon. What will Makino do?
On the side, Rui begins to fall in love with Makino. Will this become a love square?

Miyu and Shuya are high school students. They have dated for 2 years. Miyu and Shuya have a promise that no matter what, they will watch a movie together on the first day of each new month. When Miyu and Shuya are on their way to the movie theater, Shuya suddenly cancels their date. Shuya seems like he is hiding something and he acts nervous. Later, Miyu goes to the place where she is supposed to meet Shuya, but she witnesses Shuya getting into a car accident. She panics, but when she wakes up she finds herself on the morning of the accident. Miyu keeps waking up on the day when Shuya got into an accident.

The plot takes place at the same place - a prestigious high school for wealthy.

Season 2 of the drama.
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Tired of the men in her life being lying, married philanderers, Koharu moves away from the city and back home. Once there, she finds her family saddled with debt and no way out. That is until a handsome stranger offers to settle the debt if Koharu agrees to marry him. And if that wasn't crazy enough, he already has two wives!