ohh good question. there are a lot but for leoni i'd say rwy, courage to lead, connected by our stellar song and precious memories. after all this time rwy is still so impactful they settled on becoming pros for the first time here!! thinking about how far they have come since then makes me so insane. courage to lead is great aurghh honami has such a good character arc. the pillar of the band. her growth from main story is really satisfying to see. stellar song is a great arc ender i esp liked the last two chapters... ichikas untrained & trained are terrible /pos and the card name "an oath hidden in ones heart" doesnt make it any better. also the scene where they promise to be with each other forever GROSSS. hate them. precious memories is soooo cute saki finally doing things she couldnt do in the hospital and creating lots of memories together with leo/need and her friends😭😭 also "....from your childhood friends who love you very much" whyyy are they like this. honourable mentions to unwavering feelings, lwm, resotown and twilight parade. big fan.

i dont wanna just talk about leoni so i'll pick one from each unit as well (not caught up on all of them yet so this might change in the future)

mmj - my dear past self is sooo fucking good i love minori and her development so much. her speech during ch7 was great...this event really solified me as a minori fan

vbs - vot was really nice vivid street loves an so much :,) explains how an became who she is now (her fear of ghosts, her love for vivid street and her loneliness/abandonment issues) reading this whilst knowing what happens so nagi is so painful

wxs - smile of a dreamer....loved the buildup of emus feelings to her finally opening up to wxs about what's going on. i enjoyed curtain call a lot too!!

niigo - i am basic as hell but ashiato rewired my brain so hard when i first read it. i love mizuki so much and the themes her character explores and i relate to her struggles a lot. but honestly every single one of her events makes me feel like ive been stabbed in 15 different ways and i hope mizuki5 is handled well too.....the wait is killing me

thank u for the question btw i enjoyed rambling! :)