Ghosts

Ghosts are deceased humans that have not yet put to rest, they appear in the Theory Games as allies or enemies.

Non-Vengeful
A list of Ghosts are used to be vengeful or not vengeful at all

Reicheru (Rachael) the Yokai Spirit (November 15th 1599-December 5th 1613, age 14, Death by hanging)

Kazuki Sato (September 22nd 1994/2019-November 9th 2012/2037, age 18, Drowned, Shot and Decapitated)

Tokiko Shako (June 9th 1939-August 9th 1945, age 6, Nagasaki Bombing)

Sakura Shako (October 3rd 1920-August 9th 1945, age 25, Nagasaki bombing)

Takashi Sato (age 13,  Shot, Drowned, and Decapitated)

Ryou Shako (January 8th 1921-August 30th 1945, age 24, starvation)

Toshio Chaiko II (February 10th 1579-January 1st 1615, age 35, suicide)

Satoko Chaiko (September 1st, 1577-1614, age 37, suicide by drowning and slashing throat)

Another Counterparts
Kazuki Sato (Another) (September 22nd 1994/2019-November 9th 2012/2037, age 18, Liver removed)

Reicheru the Yokai Spirit (Another) (November 15th 1599-December 5th 1613, age 14, Uterus stabbed and entire reproductive system removed)

Alessandro Todaro (Another) (July 28th 1890-December 3rd 1949, age 59, Heart stabbed and removed)

Vengeful Ghosts
A list of ghosts who are currently vengeful

Ryo Kisho (October 31st 1990-June 2nd 2010, age 20, repeated stabs to the abdomen and many innards removed)

Shikoki Yoshiko (January 18th 1995-June 2nd 2010, age 15, eye stabbed and removed)

Satoshi Kisho Jr. (June 2nd 1996-June 2nd 2010, age 14, Throat slit and many vocal organs removed)

Wei Zhenghan (May 3rd 204-June 4th 211, age 8, Repeated stabs to the chest)

Jiao Xion (May 30th 205-June 4th 211, age 7, Throat slit)

Mulan Maozhi (June 25th 200-June 4th 211, age 11, leg stabbed)

Evil Ghosts
Ghosts who cannot be appeased and are pure evil. They are the villains in the series.

Alessandro Todaro (July 28th 1890-December 3rd 1949, age 59, hanged)

Jonathan Woods (June 19th 1921-October 3rd 1946, age 25, beaten and burnt by spirits of the Rossi, Shako, and Fech WWII-era families)