Here's my random thoughts on Inspiring Generation episodes 7 and 8.
Do Ggoo back stabbing Jung Tae and making him a bait when Sinichi asked him to bring Jung Tae to him. I say backstabbing because although they are not on the same gang, still, they have this understanding if not friends but not totally as enemies. I think they became civil towards each other when Do Ggoo helped Chung Ah before. Jung Tae was beaten to death [well almost] by a group of men from Pyongyang. But he made it alive and with body full of pains he struggled to waiting Ok Ryeon.
What I like about his relationship with Ok Ryeon is that even though he always make her wait, she waited, understood and forgive him. She is like his haven every time he needs one, after every fight. There was a scene when Ok Ryeon was trying to treat his wounds she was emotional because of his bruised state and kissed him on his cheeks. Before she did that, Jung Tae holds her hands conveying his feelings of gratitude and love [whatever level it is] to her. He initiated the lip kiss between them, holding her waist and deepening the kiss.
I have discussed and shared this thoughts in a thread about the kiss scene when after awhile, Jung Tae mumbled Gaya's name.