I have no idea what happened during the majority of the episode, but I liked it! Lots of things happened, and the climax was one of the most enjoyable climaxes in this series yet, but I definitely missed a few details. Below follows an attempt to understand it.
The townsfolk with funny faces prove themselves useful when the episode starts with a variation on a catapult that they managed to build, launching a barrel high in the air. Another step in the direction to get Sora to the moon (was I the only one who found it funny that Sora excused herself afterwards by looking on her watch? ^^;).
Remember the woman from the third episode? Well, she gets another major role in this one. It seems that she actually runs an important store, and has quite an amount of money, judged by the way she is transported. She first runs into Ginjiro, then into Seikishi. Apparently, they know each other, as she forces the latter in her carriage and offers him some dumplings.
Next, Sora and Ginjiro talk about what happened last episode. If I’m not mistaken, Sora explains why she came to earth: exterminate the blue monsters and then return to the moon. Then, Seikichi and the woman (what was her name again?) notice the two of them talking, and take the wrong conclusions.
Seikichi then spends a lot of the episode looking stupid in front of Sora, whom he thinks has an affair with Ginjiro.
The really incomprehensible part started when the strange notes appeared. Apparently, the woman spread them as part of a plan to get revenge on Ginjiro. Akai seems to be after them as well, and to make things even stranger, we later see every cat in the neighbourhood collect these pieces, bring them to the rich and popular old man, after which he burns them… what?
Anyway, the climax was lots of fun. The bickering between the woman and Ginjiro also was quite touching. The wooden barrel proved to be too much for the gunpowder to handle, so Sora went and got herself a rather large metal bell. When combined with the wooden structure, mentioned above, and it does reach a considerable height without breaking. But then a problem arises: the gunpowder inside the bell makes so much noise when it’s in the air that everyone in Edo can hear it. All kinds of methods are tried to get it down as fast as possible, as its parachute is going way too slow. Shinzo fires a missile, it hits the bell and bounces off again, people scream, Sora cheers and the episode ends. I have no idea what went on, but it was definitely fun to watch. :P
Just as Wellber no Monogatari, Ooedo Rocket is going to build towards its ending in the next month. I really wonder if they’ll be able to get Sora to the moon in the end. Let’s see whether the final parts of these two series manage to become even better than their first parts. June is promising to become especially interesting for these two series, as they don’t have the luxury of thirteen more episodes, and they have to prove what they build up to now.