Wataru Seken wa oni Bakari | 渡る世間は鬼ばかり (1990)

Also known as: Making It Through
Genre: "Kitchen sink" soap opera
Episodes: 49
Broadcast period: 1993-Apr-15 to 1994-Mar-31
Cast: Utsui Ken
More info
Video: ~720x394, mp4, m4v.

https://reurl.cc/vvLm3j (thanks to jfuruk)