They are set in near the same time period, and there is fighting in this as well. However, this one is more of a coming of age story rather than Friend.
The story is different, but in similar events in chronological order, and it shows everything that happened in Korea in that period (70s up to 90s), the same ideas, political activities, regulations, laws, and the style of life......
Both are Godfather-like gangster dramas. Both have hot, talented stars: All In- Lee Byung Hun, Ji Sung, Song Hye Kyo; Friend - Hung Bin, Kim Min Joon. In both they vie for the same woman. All In has an unexpected, great ending: Friend is not so unexpected after the first episode.
