Kingdom Hearts: Guardian Child

"Darkness will always dwell"

—Tagline

Kingdom Hearts: Guardian Child is a PS5 sequel to Kingdom Hearts III. It was published and developed by Square Enix and was released in 2021. It is the first game in the Aftermath Saga and the ninth game in the timeline after Kingdom Hearts III.

Although it features Sora as a playable protagonist, the main focus is on Kumo, the son of Sora, as he struggles to fill his father's footsteps as a Realm Guardian.

Story
Kingdom Hearts: Guardian Child begins two decades after the events of Kingdom Hearts III. The prologue, featuring Kumo, shows the newly merged world, and introduces the Realm Guardians. One of the Realm Guardians being Sora. During the introduction, Kumo begins to make rash decisions based off a voice he keeps hearing. This leads Sora to question if Kumo is being swallowed by the darkness. Sora seeks answers from Riku, who has taken the role of the Realm Guardian of the Realm of Darkness. Riku determines that Kumo, surprisingly, has no darkness in his heart, causing an imbalance. Riku explains that every person must have both light and dark in their hearts, too much of either can be harmful. Kumo decides he is strong enough to balance the light and darkness himself, and impulsively hops on a train that leads him across the land.