Like most death games stories, the author fails to include a speck of reality in what would the police ACTUALLY do when kids from a single class started to die in mysterious circumstances.
The first two suicides, to the police, might not trigger full-on panic investigation mode. But they would definitely come and interview EVERY-SINGLE-STUDENT + all teacher + faculty (janitors and shit). They would also find any surveillance video around the places where the two kids killed themselves and try to see any abnormality.
Next, when the rich kid (the one that MC and his other friend plays music for the night) died, that's when things will REALLY heat up. Firstly, the kid was loaded. His parents / caretakers are going to be livid. They will probably hire independent investigations. On top of that, the rich dead boy's TWO friends visited him the night of his death. MC and the other boy WILL BE TAKEN INTO CUSTODY. Any surveillance video around the house will be reviewed. The parents will be outraged and want answers. OTHER parents will want answers. Is there a serial killer? What's going on?
Then, the cops will hear about this stupid ass text message game. They will get ALL of the cell records, contact the telephone companies, and find out who is sending the texts. The police will take it VERY seriously because the fact is those texts exists. They will not dismiss it like some third rate investigators. By then, you will have the greatest minds of Japan working on this case because the media will be writing about it. There will be no more idiocy from a bunch of kids. The adults are here to play now.
Author is a man with the IQ of a child. Is there any death game stories where the author is not a complete bumbling moron with no clue on how the real world works?