the hackers are called crackers instead though. Uhh the ML use to know mc because they were both in the same hackers group. he also pretended to be three people. this is all I got
I think you're talking about [My Dear Aster]? LMK if it is!
The ML has white hair and the FL has brown hair. The FL regrets not going for the man she liked because he ended up dying. She goes back in time to save him, but then he was like ok idc if I die mind ur business. Then it turns out he has died multiple times as well. Idk if this is narrowing it down