1:40 is Shiki, 1:42 is Mei, and 1:45 is Natsumi. Mei is a lot higher pitched than Shiki and Natsumi who have lower voices so it's understandable why it was confusing
I - think - like the video 1:40 is Mei, 1:42 is Natsumi, and 1:45 is Shiki (since their vas sing in their characteristics and usual tone of speech, I feel like 1:42 might not be how Mei would sing 'ii yo ne' and Shiki would sound just slightly less chirpy from her kuudereness compared to Mei with a slightly more textbook style enunciation, and lower pitched like you mentioned; also the 2nd years' lines are in the same order as the 1st verse, so maybe the 1st years' are too but not sure if this is relevant) just my 2 cents though xD
@@renakasubs1288 If you compare their lines in the second chorus to their solo parts in the first chorus, Mei's intonations match up perfectly. The "ii yo ne" is too high pitched to be Natsumi or Shiki and Kinako's too easily distinguishable so I'm betting it's Mei
2:01 is Kinako and Keke. You can tell it's Keke at "dattara". Chisato doesn't end her notes like that. 2:04 is Mei and Chisato. You can tell it's Chisato at "dekinai" and "nante nai". 2:10 is Natsumi and Sumire. You can tell it's sumire at "namida ni sae".
For the second chorus it’s 1.) keke and kinako 2.) chisato and mei 3.)sumire and natumi 4.)ren and shiki I’m pretty sure that’s right (Sry if any misspelled names)