Actually the idea is taken from a KR novel named '12 hours after'. (There is also anoter KR novel on crypto currency though I don't remember the name.)
Anyway the execution of this novel is very poor due to CN cliché .
I still think back on my friend telling me to buy bitcoin back in like 2012 and hate past me. I mean past me has a history of making life annoying for future me but this was by far the worst mistake past me ever made.