Parent game

Two black-clad ninjas, Ayame and Rin, silently stalk enemies and strike with brutal Stealh kills in revenge for the massacre of Rin's village. With lethal blades and their own specialized attacks, the fierce assassins draw ever closer to discovering who ordered this heinous crime.
Part of collection:
Tenchu
(last 3 games)

Tenchu Kurenai Portable is a PSP port of the PS2 title Tenchu: Fatal Shadows, exclusive to Japan.

Tenchu: Wrath of Heaven is an action-adventure stealth game developed by Capcom subsidiary development studio K2 LLC and published by Activision in North America and Europe and FromSoftware in Japan for the PlayStation 2 in 2003. It was later ported to the Xbox in 2004 under the title Tenchu: Return from Darkness and to the PlayStation Portable in 2009 under the title Tenchu 3 Portable by FromSoftware.

Tenchu 4 will use the Wii Remote to fight, dash, jump and kill like a true ninja. Players will continue the saga of Rikimaru and Ayame, elite ninjas who must use their lethal skills to keep the peace in feudal Japan. Playing as both stealthy Rikimaru and aggressive and acrobatic Ayame, players will fight their way through more than 10 missions and 50 side quests and experience the thrilling adventure of being the ultimate ninja.
Could be interesting

Sekiro: Shadows Die Twice is an action-adventure game set in a reimagined late 1500s Sengoku-era Japan. Players control Wolf, a shinobi on a mission to rescue his kidnapped lord and seek revenge on his enemies. The game emphasizes precise sword combat, stealth, and mobility, replacing traditional RPG elements with a posture-based dueling system.
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