There's sort of a love triangle set up in the beginning, but it very quickly dissipates because Kyo is just mysterious to love anyone, apparently. (You find out why later.) Kenji and friend-that-is-a-girl Tsubaki sort of have a love/hate relationship, but it never really develops until the very end in a very awkward and anticlimactic way. Relationships in this series are for the most part spelled out in stone for the viewer and don't really develop beyond what you see in the first few episodes.
It's a fun series if you're looking for something with lots of action and not a lot of anything else. I didn't go in expecting a deep plot and thoroughly enjoyed it. My only major complaint is that the end of the series feels very rushed, as if the team didn't want to or didn't have the budget to work on it anymore. The show's namesake, Koutetsushin Jeeg, doesn't even appear until the last episode for all of about three minutes, which is a shame because he's really awesome. Besides that it's a great show that's at least worth giving the three-episode test run if you're a mecha fan. read more