I really like the old slice of life like that (or Ranma 1/2, Yu and Mi, etc)
the art is nice and the situations are really fun ^^
Thanks for the translation !
Yeah- unfortunately the volume numbers don't match up because Betsuni Scans used the Big Volume releases (about 400 pages a volume) while we're using the recent color re-releases (180-ish pages per volume).
Luckily it shouldn't be a problem for chapters after volume 2, but if you want a quick fix in the meantime you can go to the Betsuni Scans group page and click "Block" to hide their releases.