[coneheadZombie]

So guys im making an ebook of my an light novel called Overlord from scratch and im having a small problem with the TOC entries.

All the chapters are divided into parts like Part 1, Part 2 etc as shown below:
Here is a screenshot of the pdf.

Spoiler:

These Parts are supposed to show up below the Chapter title but once i add both Chapter title and Part 1,Part 2 to TOC, they show up on different pages on the ebook reader. Like this :

Spoiler:

and

So is there any way i can make both the titles and Parts appear on the same page and yet have them on TOC.