In need of romance recommendations!!

I really need your help, this year I think I have barely seen any romance dramas, the only two I watched complete and liked where Just Between Lovers and Todome no Kiss. I already dropped Grand Prince and Second to Last Love, I can't find a good romance drama that interests me T.T 

So I'm having trouble completing the Romance section from the 2018 Watch Challenge, could you give me some recommendations that fit these categories:

1. ( ) Watch a drama/movie about age gap romance.
2. ( ) Watch a drama/movie about marriage contract or arranged marriage romance.
3. ( ) Watch a drama/movie about first Love.
4. ( ) Watch a drama/movie about childhood friends romance.
5. ( ) Watch a drama/movie about interspecies romance.

Please do check my watch list and dropped list  HERE and it will be a plus if your recommendations come from my PTW list since it's pretty large and I also want to make it smaller. (Kdramas, Jdramas, TW/Ch dramas only please, no noona romances)

Thanks for reading and thanks for your help in advance.

Hmm.. actually this drama doesnt fit the categories u mentioned. But i can totally see that u are a japan drama fan.. hence y not try rich man poor woman? I loved it   

Ps-   i  loved just between lovers too.. 

1. Age gap drama/movie: Last Cinderela (jdrama)

2. Marriage contract or arranged marriage romance movie/drama: Lie to Me (kdrama).

3. First Love movie/drama: Good Doctor (kdrama); Just You (twdrama - I think it's her first love); Love in the Moonlight (kdrama); L DK (jmovie); My Secret Romance (kdrama); Rich Man, Poor Woman (jdrama); School 2017 (kdrama).

4. Childhood friends romance movie/drama: Minami-kun no Koibito: My Little Lover (jdrama).

5. Interspecies romance movie/drama: Strong Woman Do Bong Soon (kdrama - I don't know if this counts, but she has superpowers); W (kdrama); You Who Came From The Stars (kdrama).

 fanitha:

1. Age gap drama/movie: Last Cinderela (jdrama) I don't like older woman young man relationship dramas

2. Marriage contract or arranged marriage romance movie/drama: Lie to Me (kdrama).

3. First Love movie/drama: Good Doctor (kdrama); Just You (twdrama - I think it's her first love); Love in the Moonlight (kdrama); L DK (jmovie); My Secret Romance (kdrama); Rich Man, Poor Woman (jdrama); School 2017 (kdrama). I'll try Just You or Rich man poor woman.

4. Childhood friends romance movie/drama: Minami-kun no Koibito: My Little Lover (jdrama). Already seen it.

5. Interspecies romance movie/drama: Strong Woman Do Bong Soon (kdrama - I don't know if this counts, but she has superpowers) ; W (kdrama); You Who Came From The Stars (kdrama). I dropped Strong Woman and W, didn't like them. You Who Came from the stars - I watch the first episode but didn't like the FML's personality, did she get nicer?

Regarding to You Who Came from the Stars, I had the same feelings, but ended up liking her. She gets better.

 YueofBlueGables:

Does it have to be a Romantic drama or any drama with a bit of romance on it?

For the interspecies one, you could watch "Nakuna, Hara-chan", since he comes from a manga. Or "Cyborg Girl"

For age-gap: "Sumika Sumire"; she is a 80-or-so y.o. lady in a 20 y.o body. Falls in love with her classmate.

Nakuna, Hara-chan and Sumika Sumire sounds interesting!! Thanks for the recommendations.

From your PTW list: Love Generation

Doesn‘t fit in any of your categories. Slow paced story, no fairytale. With Kimura Takuya.  I liked it very much because the characters felt  real, the story also. Note this is an old drama. Visually not much attractive, but Kimura with ponytail :D