Iron Family
Jealous Hearts (1x12)
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After discovering that Tae-woong is Seung-don’s biological son, Gang-ju feels upset and jealous, leading him to drink heavily. While Gang-ju is intoxicated, he confides his feelings to Seung-don. Later that night, he encounters Tae-woong and Da-rim, and Gang-ju and Tae-woong end up in a fist fight.