Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Character | Title | Author | Artist | Imprint |
| --- | --- | --- | --- | --- | --- |
| 2005.0 | Dokuro Mitsukai | Bludgeoning Angel Dokuro-Chan | Masaki Okayu | Torishimo | Dengeki Bunko |
| 2006.0 | Kino | Kino's Journey | Keiichi Sigsawa | Kouhaku Kuroboshi | Dengeki Bunko |
| 2007.0 | Holo | Spice and Wolf | Isuna Hasekura | Jū Ayakura | Dengeki Bunko |
| 2008.0 | Haruhi Suzumiya | Haruhi Suzumiya series | Nagaru Tanigawa | Noizi Ito | Kadokawa Sneaker Bunko |
| 2009.0 | Tohko Amano | Book Girl series | Mizuki Nomura | Miho Takeoka | Famitsu Bunko |
| 2010.0 | Mikoto Misaka | Toaru Majutsu no Index | Kazuma Kamachi | Kiyotaka Haimura | Dengeki Bunko |
| 2011.0 | Mikoto Misaka | Toaru Majutsu no Index | Kazuma Kamachi | Kiyotaka Haimura | Dengeki Bunko |
| 2012.0 | Mikoto Misaka | Toaru Majutsu no Index | Kazuma Kamachi | Kiyotaka Haimura | Dengeki Bunko |
| 2013.0 | Mikoto Misaka | Toaru Majutsu no Index | Kazuma Kamachi | Kiyotaka Haimura | Dengeki Bunko |
Question:
Who is the author of Bludgeoning Angel Dokuro-Chan?
Answer:
Masaki Okayu