This appears to be the end of the main Raburaki! comic.
It is followed in the artist's pixiv by a sequel doujin (not a 4koma), Raburaki! EX, which is apparently collected in two versions, one of which is R-18. Not sure how to pool that here.
Tomoki17 said: The sequel is now complete, now who wants to post it?
Go for it
False ResemblanceWell, if that discussion is settledWe don't really mindAnd this shortySeems like a kid that's easy to get along withWhat? Misakichi's stupidity may be natural, butMine is just a result of going with the flowHa ha ha, how stupidHoho~ Now you've said itCome on now, stop alreadyNot nearly~Said funny because of the fingers in her mouth, I think