Is it working now? The manga chapter I've been trying to load for the past 20 minutes finally loaded lol.
(Plus I'm able to post now, before it wouldn't go through.)
Darn it, I actually liked Sasaki (even though she was a bully and a background character).
Anyway, I might be wrong but it seems like the messages correlate to things said to Asahina by the bullies. The cards with the actions that Asahina was forced to do/were done to her seem to be the deadly...
@mcmaxmcmc Which is a shame because chapter 1 was so good, with a unique and interesting premise. It's a shame that the manga that interest me the most are always ones that are not completely translated.