Shou Toramaru is a tiger youkai from Touhou Project and an avatar of the god Bishamonten. She first appeared as the boss of Stage 5 in Undefined Fantastic Object. Nazrin is her servant.
Although Shou is an avatar of Bishamonten, she is also a disciple of Byakuren Hijiri at the Myouren Temple. Her ability is the power to gather treasures, which she turns into ash using her jeweled pagoda. During the events of Undefined Fantastic Object, she, along with Nazrin, Ichirin Kumoi, and Minamitsu Murasa, attempt to free Byakuren from her 1,000 year imprisonment in Makai.
This version of Shou is a four-buttoned character with fairly simple gameplay, which attacks primarily with a spear and an unusual object in her other hand. Her power meter is used for two attacks, which are activated by one button each, a horizontal laser and a blast of projectiles in eight directions. Because of this, her moveset is limited, with only the remaining two buttons having multiple attacks.
Her AI is mediocre and not very notable.
Rien's version of Shou Toramaru is also quite simplistic, but is closer to a more standard fighting game character. With three buttons to attack, she primarily attacks with her spear and a variety of kicks, with one notable attack being a diagonally downwards move that, if it connects, results in the opponent being dragged across the floor in a spectacularly brutal manner. If this attack KOs the opponent, it counts as having done so with a super/hyper for some unknown reason. Despite her attack stat being below average, she can still deal heavy damage.