#dragoni

First, baseline Oni headcanons:

The Oni usually range from 6'6 to 7'2ft (198-220cm)

They have fur that stores their sweat as a natural coolant in hotter temperatures and keeps them warm in colder temperatures.

Their body temperature is usually very warm, to the point you can be near one and feel it without touching them.

The Dragoni language does not have pronouns so the Oni do not have perception of gender.

Gentle biting is a love language, also they purr.

Now to the reproduction side:

The Oni have humanoid genitals, but they have both sexes instead of one, exceptions are extremely rare.

The Oni also lay eggs for whatever reason.

Due to having both genitals, either one can choose to be the one to lay the eggs, however their preference is.

Heat cycles 2 times a year, usually with partners their bond can align the heat cycles to approximately match.

Due to having both reproductive genitals, they can also reproduce asexually, but often refrain from doing so, as the child will have a significantly shorter lifespan compared to normal.

The Oni cannot be classified as mammals, because they do not produce milk, their chests are all flat.

And now to the babies:

The Oni have a strong maternal instinct and would never hurt a baby/child of any species and are very protective of any child they find.

This also means that if an Oni's baby dies, they can mourn for a long time, possibly even years.

The egg develops inside the Oni for a few weeks and then after the egg is laid, it takes 10 months for it to hatch.

After the baby hatches from the egg, one of the parents uses their claws to crack the eggshell into small pieces and feeds those small pieces to the baby, due to the eggshell's nutrients being similar to human breastmilk.

The babies could easily be mistaken for kittens, if it wasn't for the tail.

Now to the hybrids and how they work:

An Oni hybrid baby can look more or less Oni depending on whether they were born from an Oni egg or from the other parent.

If born from an Oni egg, they're usually more Oni physically, if born from the other parent, the baby looks more that species, some exceptions do exist.

With the exceptions, it might be harder to get them to survive the first days, as their mouths may be too weak to consume Oni egg shards, or, if the other parent is a human, their teeth might hurt the parent too much for them to breastfeed.

The Oni egg problem can be solved by crushing the eggshell into powder and adding water, making it similar to baby formula.

The breastfeeding problem can be solved by simply either feeding the child baby formula or through bottled milk.