( i should put a reminder so i don't forget to do this )
Days 9 and 10 !
Nanami > Touko = Rui = Mashiro = Tsukushi
Masking = Chu2 > Pareo = Layer = Lock
Day 11! (Today)
There's a lot actually, but i would probably say Teardrops, Returns and Light Delight.
I choose those songs because they aren't only my favorites, they have also helped me move on, specifically from the time that i lost my childhood friend / best friend