There was no development! He literally learned nothing! Honestly it could've ended at the first season. He literally left the first Cheongu without any explanation and you would think that the lesson would have to do with how he left him and he would regret doing that!?!? And then when he found out he was with the wrong Cheongu he didn't even make an effort to get to know him!!!!!!!! How did he even grow as a character!?!?! He started the story the same way he ended it! Honestly it should've ended with an epilogue after the first season. It would've been bittersweet but it would've been leagues better than the bs that was this season.
There was no development! He literally learned nothing! Honestly it could've ended at the first season. He literally left the first Cheongu without any explanation and you would think that the lesson would have to do with how he left him and he would regret doing that!?!? And then when he found out he was with the wrong Cheongu he didn't even make an effort to get to know him!!!!!!!! How did he even grow as a character!?!?! He started the story the same way he ended it! Honestly it should've ended with an epilogue after the first season. It would've been bittersweet but it would've been leagues better than the bs that was this season.