User blog comment:B214/High School DxD EX/@comment-25262334-20151028173855

Time of first rumors finally arrived!

So apparently Issei conceived at least 10 children. Current known list include: (In order how they were born) Himejima Kurenai - 18 years old. Son of Issei and Akeno. Hyoudou Airi - 18 years old. Daughter of Issei and Asia. Zen Quarta - 17 years old. Son of Issei and Xenovia. Shidou Shin - 17 years old. Son of Issei and Irina. Ix Gremory - 15-16 years old. Son of Issei and Rias. Shirayuki - 12-13 years old. Daughter of Issei and Koneko. Kurobara - 12-13 years old. Daughter of Issei and Kuroka.

Beside them there is at least three more children. One of them is 17 years old and was born between Shin and Ix. Rest of details about them is currently unknown.