This deck is based around using Princess Cologne combined with either Grandpa Demetto or Doll House to get XYZ monsters out.
Soul Tiger and Phantom Gryphon could be swapped for other Normal monsters, but you should use level 4 Normal monsters with either 0 Atk or 0 Def.
The 6 Doll Monster cards are required for Doll Happiness to work.
Box of Friends is basically required before you can Princess Cologne on the field in an effective way. This is easiest with Doll Happiness, but setting Box and letting it be destroyed works otherwise.
Grandpa Demetto, if you already have one Normal monster in the GY and Princess Cologne has at least one material, allows you to SS any rank 8 XYZ from the Extra deck, depending on what you need at the time.
Fortune Fairy Hikari is an additional way to get Demetto out. There may be a better replacement that doesn't clog your hand if drawn as a starting card.
Doll House allows you to get out rank 6 XYZs, but with the requirement of having 2 Normal monsters in the GY that also have a copy still in the deck. Use Pot/Jar of Avarice if there are too many in the GY and none in the deck to make this happen.
Nefarious Archfiend Eater of Nefariousness can be special summoned when Grandpa Demetto is on the field, and once it goes to the GY can destroy your other monsters to come back from the GY, proccing Supply Squad, proccing Box of Friends, or just getting rid of a monster you don't need anymore, such as certain XYZ monsters that are out of materials.
Supply Squad and Piercing the Darkness provide additional card draws, and Piercing the Darkness additionally buffs any XYZ monster that used Normal monsters as materials for summoning. Pairs very nicely with Kachi Kochi Dragon.
Solemn and Ash Blossom probably shouldn't need explained.
Number 97: Draglubion could be easily swapped for a different XYZ but I highly recommend the others, especially Hieratic Sun Dragon Overlord of Heliopolis, which combos with Grandpa Demetto (who will usually be on the field if Hieratic is out, since you need Demetto to create the level 8 materials).