Thanks to my friend in circle for this tip~
I legit got huge score from 2nd Section because Kosuzu get -3 AP buff~ and UR [Ladybug] Kosuzu is basically give extra 2 AP when you use her and current mental less than ~5%, Tsuzuri may take 7 AP and give 5 AP back but thanks to section buff effect~ Kosuzu give 2 AP back make these two go infinity ♾️ until next section~
Also don't forget to use Kosuzu SP Skill who can prevent your team die for 1 section or you will keep dying lol~