keiji

1. http://www.mangago.zone/read-manga/tale_of_the_yellow_dragon/
Fantasy yaoi, seme has long white hair. This story will make you cry, and then smile. A true rollercoaster. Amazing!

2. http://www.mangago.zone/read-manga/serenity_film/
This story has two couples in it. And the second couple uke has longer hair. Till like shoulder. I don't know if u consider that long, but I really liked this one, so give it a go!

3. http://www.mangago.zone/read-manga/to_take_an_enemys_heart/
LITERAL DEFINITION OF ENEMIES TO LOVERS. They both have reaaally long hair. Don't let the first chapters scare you away! It has A LOT of development, both in art style and in their relationship. I really love this one.

4. http://www.mangago.zone/read-manga/spinel_baekji/
Beautiful seme and uke in this one! Seme has really long hair

5. http://www.mangago.zone/read-manga/the_knight_s_unfulfilled_dreams/
Seme has long hair in this one. Badass uke.

6. http://www.mangago.zone/read-manga/gorani_jeon/
Amazing drawing style! Both have really long, beautiful hair!

7. http://www.mangago.zone/read-manga/sahara_no_kuro_washi/
AAAAGH, MY ULTIMATE FAV MANGA. The start of their relationship is... controversial? But as the mana continuous on, their feelings become soooooo beautiful for each other! They both have long hair, the uke has longer then the seme.
Here is the second part as well!
http://www.mangago.zone/read-manga/black_eagle_in_the_sahara_alkil_s_story/

thank you so much for this!! :))

Happy to help! (づ￣ ³￣)づ