Secret of the Cursed Mask

is a PS2 Role Playing Game that appeared in both Japan and America. It allows the player to choose which gender their character will have. Roughly it should take place some time prior to Naraku's fleeing to Mount Hakurei, or after, while he's still on the run.

Plot
The game begins when Kururugi enters the family storage shed in modern day Japan to retrieve an item for her father. After falling through a mysteriously etched pentagram on the floorboards, the player is transported to Feudal Japan. Unfortunately, the villagers mistake the time traveler as a demon and attack. After several close calls, Kururugi comes face to face with Inuyasha, who notices that the stranger's clothes "look like Kagome's".

After introductions with the rest of the cast, the player begins to search for answers as to why Kururugi has been brought back to the feudal era and how to get home. The game progresses as any normal Inuyasha storyline, with the Inuyasha group traveling from village to village in pursuit of Naraku and Kururugi's answers, sometimes helping out with a local problem or two. Occasionally traces to Naraku himself are revealed, as well as leads to Kururugi's mystery and the title's "cursed mask," which holds secrets to returning the character to the present. Along the way, Kururugi learns to harness the power of shikigami from a mysterious old villager called Kakuju, a force needed in order to help Inuyasha and the others overcome the dangerous obstacles ahead while unraveling the plot of the mystic Utsugi.

Several characters from the anime appear to help, or hinder, the group's progress, including Kikyo, Kagura, Koga and Sesshomaru.

Kururugi
The main character(s) of the game, If the player chooses the boy, their name will be Michiru, if the girl is choosen, the name is Kaname. A dececent of Utsugi and Kakuju, the player holds the latent ability to command Shikigami, which is awakened during the journey. While spending time with Inuyasha's group the player may either form a strong freindship with those of the same gender (and Shippo), or start a romantic triangle (or just add onto an already messy one).

Utsugi
Once a living human and the wife or husband of Kakuju, Utsugi later died following the birth of their their child. However, Kakuju brought her/him back as a Hitogata. After being chased out of the village because of not aging, Utsugi teamed up with Naraku to obtain a decendent from the future (the player) and a shared of the Shikon Jewel, in the hopes of perfroming Soul Infusion to become a true human once more.

Kakuju
The former preist or preistess of the Kururugi Shrine. Kakuju sought to reclaim his lost love in the form of a Hitogata, a plan that backfired when Utsugi did not age after many decades. Kakuju went out searching for Utsugi in order to start over and apologise for being selfish. During his/her travels, Kakuju meets the player and grants them new Shikigaim powers along their journey.