That is the dumbest way to hold a person who is hanging on a cliff. You hold his upper back to give assistance. That takes the extra load oof the distressed person's shoulders and you pull him up until the more powerful latisimus dorsi and serratus anterior muscles can engage so the person can pull himself up.
I love this anime... sadly i couldn't see the second season... but the full first season was sooo awesome the Story ❤❤❤ Akatsuki no Yona (Yona of the Dawn)