I could translate the whole comic, but I don't have that much free time.
There are some puns in Japanese very hard to translate and some funny accents. I haven't played any Touhou game so I don't know about the parody factor. The characters in the comic speak several times about a criminal and a crime, but I don't know what are they referring to. They mention several times the absence or concealment of the full moon, maybe it's something about that.
The girls are surprised to see Marisa (the buffed up witch), because she's always been normal looking.
The first girl thinks at first that she's Marisa's big brother. Marisa then explains that training spirit and body it's the most basic of the basics for a magic user, and that's what she's been doing.
The second girl, Alice, goes to see Marisa about an investigation about the disappearance of the full moon. I'm not sure, but I think Alice likes Marisa in the original game. Anyhow when she sees Marisa she runs away to get ready a bit. Marisa thinks she is playing ring-and-run, pisses off a bit and goes after Alice.
After some talk and mistakes, Alice surprises herself saying that she wants to touch Marisa's abs. After more confussion on Marisa's part, they agree on a fight. Alice launches a mini-dolls attack, but they love Marisa's muscles, and Alice runs away in jealousy. Marisa finally says that "if she wanted to touch my abs so badly she could've come home as usual…". ;D
Um, I know a large part of this is more a description of what's happening than a translation. If someone wants details of something just ask.
PD: I'm not an English native speaker, I hope there aren't too many errors.
What I find funny is you don't make a single mistake until you ask if you did. It's PS, not PD. I find that very amusing. 😉
.
