Game on point

It's a Japanese Drama called "Hours of my Life." It is the struggle of a young man fighting the deadly disease ALS. These two characters are the main leads of friends. They have their own story but it's a good show. It's a tear jerker for sure.

Well now i have to watch not only for the fullmetal, but also cause im a sucker for sad stories

Was this the one that had the "I'll get fat too and we can both roll around," line?

No that would be a Korean short drama called Vacation starring TVXQ Max Changmin

Thanks, I've been meaning to check it out.