Review Detail of No_Yuri in The Extra of The Lunerra

Hey guys :) can someone tell me what type of story it is? is it something like mc help the 'game ML(male lead)' in other to save the world? or the mc himself become stronger then the ' game ML' ? I don't like stories where the MC just help the ML to get stronger instead to getting stronger himself.I mean why can't he grab every opportunity that the ML get.What's the point of don't wanting to ruin the plot.It's frustrating to read novel like that.