Review Detail of 00Mark in Protagonist?Antagonist? I Reject Both

Listen, i really wanted to like it because i have nothing else to read but i just can't endure how emo the mc is, i mean yeah he had a tough life before reincarnating but come on, the moment the mc is angry or insecure he will let everyone in his proximity know about it and explain the reasons without missing a detail. Also the system (?) or whatever that was, not a fan.