Review Detail of MrNewbie in System vs Rebirth

There is absolutely no logic in here, so the family of the mc is exterminated vy the royal family and the stargaze family with a direct implication from anna stargaze the " love interest ", the two met after the girl came back from the future to steal all the opportunities from the mc, and like in the arc of days since they've the mc goes from killing from sight, to her food is really good and she smells nice, i should do what she says and help her. This is bullshi* his family was killed recently yet he somehow is fine with helping the killer. I don't care if in the future we find that she wasn't completely at fault (we even have a memory of the girl where she begs her father to kill all of them and to not leg go of the mc) how can a normal human being do such a thing? if it was my family i wold have no problems in killing entire cities just to harm their killer, yet he helps her? why he dosen't try to stab her in the back while they fight enemies? why he helps her in stealing his opportunities? How can he be such a beta? And at last why does this novel have more than a million views yet only 29 reviews, all of which good?