Hmm most favourite of each would be:
- Songi
- when Cheol confronted Miae over the kiss and the whole chaos over it
- Miae and Cheol will be together forever no matter what circumstances get their way
- Songi telling all the kids to shut up during that basket ball match drama
- pretty much everything, even from the time they were 10 year olds
As for least favourite:
- mole guy
- either the forced separation arc or the latest one b4 the hiatus
- cheolmiae going separate ways and falling apart
- either the one where moke guy showed up alone with Miae and threatened her during that trip, or the drama Jisu has been causing in the latest arcs
- maybe this cliffhanger they had, tho it might change once it's fully revealed what exactly happened