I've read it, and in my opinion people can read this however they like. Whether it be bl or just normal bromance between peers. One of the characters are even canonically pansexual since they said they didn't mind going after men or women so long as they had a cute personality. So my advice here is just read for your own enjoyment. And please, don't start fights or debates with others on how the manga should be tagged and just enjoy it. It's a win-win situation for everyone that way.
Imma be honest here, the mc is just straight up depressed and miserable, and the ml is just straight up psychopathic and murderous.
Match made in heaven ig