this was a great cdrama, and before the buts I'll talk about the good points:
1- the fl was the main hero, she woke up 1st and she "solved" most of the problems, though at points they did seem to always praise the ml (once the cop even praised him for remembering "something" but at that timeline the fl did all the work)
2- each passenger had their own lives, as the leads suspected them all, each one of them revealed their own struggles and hardships (I do think they glossed over them too fast, but in the end they were all "heroes" eventhough most time lines they didn't want to intervene)
3- the cat guy UWU
4- the different interpretations of how each action resulted in a different reaction (though they were a little too repetitive at times)
5- I'm glad the final showdown was done by the fl

now for the buts~
1- I think one pervert one time was not enough for her meltdown. if someone touches you, SCREAM right away. there were many people there, her story felt like a simple "backstory" on why 2 people wanted to blow up a bus..
2- going to prison for terrorism and mass murder attempt probably has a higher jail time than sexual harassment, which is sad cuz that dude deserved worse...
3- I thought this was like that ep of "Mystery to Iunakare" where the kidnappers took the bus with all the suspects of that event, though indeed it'd have been harder to track down the pervert which results in my "solution"
4- this should've been revenge. like they did find the pervert but he got out easy and they wanted more..
5- at one point the ml was too controlling, the fl was the hero that did most of the job while the ml always nagged her
6- this needed half the ep counts, they had too many repetitions
7- I'm not into cdrama osts