makyun:

Arima: Do you know what happens when a human and ghoul bears a child?

An image of Itori appears: “Most of them lose their lives…”

Kaneki: A One-Eyed Ghoul… They’ll become a half-ghoul…?
Arima: …Not all of them. A case like the One-Eyed Owl is rare.

Arima: The children born do not differ too much from a human.
Arima: Not all of them have a kagune, and they’re capable of eating normally.

Arima: What makes them different is that they have high physical capabilities and that they will ‘die early’.
Kaneki: Wha…
Kaneki: What’s with… that…?
Kaneki: Just for what purpose…

Arima does a small smile.

Arima: …Who knows. I don’t know the reason but…

Arima: Perhaps they wanted to become human…
Arima: Washuu (V).