I haven't done anything so far, but I'm going to put even more effort into doing nothing.
After reincarnating into the game world, I did nothing to avoid becoming a variable. As a result, I got caught by the original protagonist. “Where were you when the alchemists of ‘Ex Machina’ hacked and took over all the security within the Cradle?” “When the black mages of ‘Under Chain’ led the undead to invade?” “What were you doing when the fanatics of ‘Eden’ went around brainwashing the undergraduates?” “What was it like when the devil worshippers of ‘Lemegeton’ breached the school gates?” “You were the only one who remained out of all those situations.” No, fuck, that’s total bullshit.