Who's that large figure helping out around the TBD? Simple, that's Kinger! The man in charge of the Emergency Neutralization Department of the TBD.
And don't fret with how he looks and how large he is, he's a big sweetheart at heart. Still a lover of insects as well, as he often enjoys seeing the new kinds of insects that form from different timelines.
Though when on the clock, he's very serious and stern, which makes sense given that the job of the END is very dangerous. They are in charge of repairing the damages to timelines due to a great deal of damage in them. Which means fragments of the timeline need to be put back together and seal off the damage.
Of course, during such repairs, things could slip through the cracks. Things that could attack and harm, things that could cause issues. So what do you need for such a job?
The right tools of course! Many people would use mechs or smaller machines, Kinger is an in between. Lugging heavy machinery that allows him to lift fragments of timelines while also dealing devastating blows. You think he would be slowed by the weight, but no! He's actually quite fast, often using boxing movements when fighting.