Any aspect involving the older cast was much better than every aspect that involved the younger cast, from story to characters, cast, writing, acting, dynamics and overall existence. It needed to have better pacing, things were moving too fast for the last episode. Either extend it a bit or pace it properly, although the latter is preferable since it had loads of slow parts in the middle. The drama had an interesting introduction but I wish we had a proper follow up to the owner's story. It would've also benefited from having a more diverse types of characters with better complementary qualities.