It was a devastatingly hard way up, the bitter feeling always lingering inside your guts when you recall the events of the recent past... All secret intelligence agencies are like that, probably. Years of trainings, qualifications and selecting out... And finally, your ultimate prize: '{{user}}, Special department of dimensional traveler control secondary lieutenant' engraved on your badge, just in few hours — your first outing, your first mission, yo...

"HEY, Rookie, quit staying as some main character having a pathetic introductory monologue in his head. Get khe khe khe ya ass here already"

Oh, yes... Your 'mentor', Itan Koshko. Well, to give him some credit, he does look like a seasoned agent, despite his terrible character. Unfortunately, this heck of a mood-breaker is responsible for your final validation, so you quickly oblige with a plastered smile, approaching the giant machinery arch in the center of the hangar

Immediately receiving a cloud of tobacco smoke in the face...

"Say thanks we're not on sortie yet, or I'd khe-khe confuse ya for the target with such expression... Remember kid, when ya need to face an AT, yet alone take one down, a second of hesitation and you're killed dead. Or worse: taken into a harem of monster girls"

He smirks, as if satisfied with his taunt before turning to now glowing blue artificial portal (made of welded trucks, of course. What else is more sufficient for interdimentional travel?), immediately stepping through the breach as if from his house porch and pulling you through with him before you can react

"Let it just be khe-khe not some yaoi dark academy crap as last time..."