Lugh - who bears a remarkable resemblance to Lag - works together with
an old man (he calls him Grandpa, but there doesn't appear to be a blood
relationship between them) in an imagery lighthouse in one of
Amberground's more remote regions. Recently, though, Lugh's been
hearing voices around the lighthouse, calling his name and warning him
to "get away from here", and he has no idea where the voices could be
coming for. Passing by while on a delivery, Jiggy Pepper realises that a
Gaichuu has nested on top of the lighthouse, but when he uses his
Shindanjuu to destroy it, it unleashes an unexpected chain of events...
No prizes for guessing that Lugh turns out to be Lag, although it has to be said that the story is told in a rather arse-about-face way - the opening half of the episode shows us the outcome of the story, before the second half rewinds to tell us what happened in the first place to leave Lag working in a lighthouse (quite what an "imagery lighthouse" is, as distinct from the sort of lighthouse you'd find on Earth, is never explained, but it's a long way from any ocean). It's a strange way of telling a story, but it works surprisingly well, as it gets you to engage the old grey cells a little to figure it out yourself, and the clues are there to allow you to do it, if you're so inclined.
Even if you're not, there's enough depth to the story to keep your attention, although the various illusions and whatnot that the episode uses can throw you a little if you're not following closely enough. Also of interest is Jiggy Pepper's appearance - his name may be one of the daftest in recent anime, but he's a character who has almost legendary status to the Letter Bees of Yuusari (second only to Gauche himself), and there's a certain feeling of payoff that comes from finally seeing him take a direct role in an episode - instead of just sitting on his 'iron horse' and looking moodily into the distance.
You'll have noticed, though, that Gauch and Reverse are once again notable by their absence from the story. While the title of the next episode hints that Reverse will at least make an appearance, Gauche is once again being ignored. While, if you've paid attention to the past few episodes, you'll have spotted a theme of Lag being prepared for what he'll have to do to get Gauche back on track (the special bullet given to him by Jacob, and Jiggy's warning to Lag here about becoming too caught up in seeing the heart of others), it's a growing frustration to me that the series is moving its main story forward by hints and clues, rather than by getting on with it in a proper, wholehearted way. Perhaps that'll change before I get much older or greyer, but it's getting to the point now where I wonder if Gauche's occasional appearances are just a way of teasing us.