This was very cute! Loved it!
Except for the second-hand embarrassement at the flirting attempts of our young hero, which of course were an important part of the story but made me cringe nonetheless (as they were supposed to, but still xD)
I personally don't ship Ekko with Janna, but the story and the background you made up for it here really brought it to life! Especially the background story sounded very believable.
Only part I'm not sure about: the green gunk?! Did he throw up? had the coffee gone off? Maybe I just didn't want to think about it too closely...

And even thought it's been a while since you posted this, I hope whatever exams you had to take had gone well!

well written.

it was quite painful to read through all of Ekko's failures, but I'm glad I did

The thing with time travel is that it can get a bit repetitive; this, on the other hand, was a pleasure to read all the way through. Right now I'm still grinning non-stop from the thing about Ekko's trousers XD

(Are these messages anonymous? I would just write my name if they were :P)

This was awesome! I had a lot of giggles while reading this, really brightened up my day!

Not sure if intended or not, but Janna is Zaunite by birth, although you may have written it so that Ekko didn't know that.

People will say that Jinx is the much more obvious ship because he explicitly states he used to have a crush on her in his lines towards her, but I can see where the tension with Janna could come (that one line about him not knowing what to say and making some off-hand comment about the weather), and I've even considered writing something about this pair just the other day, though that never actually got off the ground.

The story itself went towards a pretty nice direction, I like how you show recognition of the potential Jinx ship and then show Ekko's dismissal of it by chalking her off as the complete lunatic which she is. His demeanor is on point too, a cross between teenage cynic and hopeless, cheesy adolescent-in-love. Your use of his time travel as he clumsily shifts between outright awkward introductions to taking on personalities which he can't pull off was pretty effective too, although I have to admit I was a bit disappointed by the way his last advance went (the poor guy's just asking to be friendzoned with the whole 'I like this girl' approach)

Janna was well-written, but perhaps a bit too perfect. I don't know how she can be so patient with his bumbling advances, you'd think she'd be more than annoyed at a bunch of suitors constantly hitting on her.

The only major disappointment I have with the story is that it's listed as complete.