Kleio Hey! You around? Cyrielle I am! What's up? How was your thing? Kleio Ah, you have no idea. Cyrielle No I don't indeed. If I did, I wouldn't have asked how it was! Kleio Stop being a smarty pants :D Cyrielle You know I won't! So, what's up Ariel? Kleio Calling me Ariel again uh? I already have a mythologic name! Cyrielle I know, I know. But you know, since that one party where you dressed as a mermaid, I can't stop. Plus, Ariel is an angel, who rules the earth and the sea. And as my best friend, you rule my world. What can I say? Kleio You do know Ariel is originally a guy, in this mysticism you talk about, right? Anyway... My evening! Cyrielle Right! Kleio So, you know how I went to see the opening of the Splinter station? They were supposed to have some sorts of show, but nothing happened as expected... It was quite lame And guess what? At one point we were even attacked by mini dragons... And there was this one guy I had been talking with for a while, George (yeah I know, weird name), who had a sword, and starting fencing them away. I love how old school he is. His name is quite uncommon, and he's fighting with obsolete weapons... A bit of a weirdo sometimes, as if he was from the past, but I actually really like it, for some reason. Cyrielle That's a bit weird indeed! Kleio I actually haven't told you the weird part. The name and weapon are just cute :P Basically... He joked about time travel. He said he was from the past, and that at some point in time, he was actually fighting dragons with his pet lions. He also joked that he was semi-famous, so much that his actions were depicted forever through time. When I asked where I could see any sort of depiction, he said I needed to undergo one new change. And with this change, I'd be able to see him "whenever he is". And then he moved on to more normal topics. I thought he was joking, but it actually get pretty serious to him. I'll have to ask him one day! Cyrielle I will reiterate my last comment as it still applies: That's a bit weird indeed Except I will also add "WTF?" Kleio Oh well, it was a fun evening in the end, I won't complain!

Apparently, you will have to find something connected with splinter, one new change, George and his pet lions
If our assumptions are correct, you should be able to find L4 this way:
abcd-efgh

You will also need to name this location and use its first letter.
It will be the 4th password letter:
<[|— — — L4 —|]>