The Skip Beat! Wiki uses "ACT.XXX" as main name to the series' manga chapters instead of "Chapter XXX".
You could also contribute on this project by contributing on these pages:
Pages in category "Chapters"
“ Undead Monster is the 243rd chapter of the Skip Beat! manga series. Kyoko has been dismissed...
“ Undead Monster is the 244th chapter of the Skip Beat! manga series. Kyoko gets one more chance...