There are 1 book by Sumio Uchino on BookOrb. A strong starting point is 13-nin no tenshi (2009). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Sumio Uchino written?
BookOrb lists 1 book by Sumio Uchino.
Where should I start with Sumio Uchino?
A good starting point is 13-nin no tenshi (2009).
What is the Sumio Uchino books in order list?
In publication order: 1. 13-nin no tenshi (2009).