I think that Kikujiro & Lost and Love have lot of similarities, the first one is that they are both kind of Road movies, we got to travel with them, visiting, Japan and its sceneries in Kikujiro and the same with Lost and Love but this time in China. Two protagonists (Kikujiro with Masao) and (Lei Ze Kuang with Zeng Shuai) are looking for someone and in that purpose they have to go on a long journey, they meet many people on the road, funny, kind but also some weird and crazy people as well.
Cinematography is breathtaking in both movies too.

Only the genres are a bit different cause Kikujiro is more funny and crazy while Lost and Love has a sad but very heartwarming tone. Two gems in my opinion;

They have many things in common:
-Written by the same scriptwriter (Okada Yoshikazu) with Domoto Tsuyoshi as the leading character.
-Both are family dramas too, however Yume no California focuses more on the relationship between friends and their struggle to lead a good life.
-And last but not least Yume no C along with Home Drama are beautiful stories which make us reflect a lot about life.

Because in both dramas we have a father trying to raise a child on his own (with the help of friends or family), however in Kazoku the main character is getting a divorce whereas in Tonbi he is a widower.

These dramas really deserve more recognition ;)

In both dramas Ariel Lin is a smart girl who'll do anything for her beloved one even to give him some precious advice during time of war. And if you liked Ariel Lin in one drama you'll surely like her in the other one .
Other than that Prince of Lan Ling and Legend of the Condor Heroes are totally opposite from each other and in my opinion Lan Ling Wang was way better !

In both dramas the female lead lies to the one she loves and ends up being hurt !