

Kaelis: Seraph Protocol
YoshiYoshi Studio · 2026 · JRPG, Adventure, Anime, Fantasy, Lore-Rich
PC
This game is free to play. Get it on Steam →
Screenshots
About Kaelis: Seraph Protocol
KAELIS is an academy sci-fantasy JRPG that combines the character attachment and relationship-driven appeal of subculture games with the deep narrative immersion of a single-player JRPG.The name Kaelis is inspired by the Latin caelum — “sky” or “heaven” — and caelis, evoking the celestial realm.Players take on the role of Kaito, a citizen of Kaelis who becomes an Executor of Serenos Academy.
With his academy companions, he investigates Noise incidents, and his choices, field decisions, and enforcement actions shape his relationships and the flow of each case.Two hundred years ago, the world was swallowed by the flames of war, and everything turned to ash.There, beneath the ashes, humanity found a small and faint glow—a light they named "Lumina."Drawing close to that light, they built their last city: Kaelis. A city filled with Lumina, peaceful and beautiful even now.
And yet, behind all that order, the light would sometimes waver, ever so faintly— a distortion no one could explain, the thing people came to call "Noise."
Shirakawa Kaito was an utterly ordinary boy, one who had always kept the necklace his father left him close to his heart—until, from one day on, the city itself stopped recognizing him as an "ordinary citizen."
Caught up in that strange change, Kaito finds himself stepping onto the field as an 〈Executor〉 of Serenos Academy, the body that handles the city's Noise.
Together with the Academy's own Guardians, he sets out toward a truth about this city that no one yet knows—and now, the story begins to move.Meet Your Guardians.As Kaito’s journey through Kaelis unfolds, he will meet new Guardians who become companions in his fight against the Noise.Each Guardian belongs to one of Serenos Academy’s specialized divisions, carries their own Lumina attributes, and brings a different role to the party.
Build affinity with your companions through the story, conversations, and time spent together at Serenos Academy.As your bonds deepen, new sides of each Guardian begin to emerge, and the way they fight alongside Kaito may change through coordinated attacks, support actions, and party synergy.Fight alongside the Guardians of Serenos Academy in turn-based battles with up to four active party members.Every Guardian and every Noise is shaped by one of eight Lumina Spectrums: Ignis, Glacies, Fulgur, Terra, Lumina, Umbra, Void, and Aether.Each Spectrum has its own strengths, weaknesses, and reactions. Observe how the Noise responds to your attacks, identify its Spectrum, and bring the right Guardians to the front.As Kaito’s bonds with his companions deepen, coordinated attacks can be unlocked, opening new ways for the team to act together in battle.
As an Executor, Kaito can activate the Executor Device to seal and recover Noise Cores from the field.Recovered Cores can be brought back to Serenos Academy, where they are analyzed and used to support Lumina Disc development, facility upgrades, and Guardian growth.Kaito’s choices, bonds, and discoveries can leave traces on each case, shaping the path an incident takes before its outcome is decided.
- The Armillary Sphere
- Choices and Field Decisions
Walk through the luminous city of Kaelis, a peaceful sanctuary where Lumina supports everyday life.Explore districts and sites such as the Academy Quarter, shopping areas, the city center, quiet outskirts, and places touched by Noise distortion.Each location offers a glimpse into the people of Kaelis, the systems that protect them, and the emotions that quietly shape the city.
Enter Kaelis. Become an Executor.
Community reviews
—
0 reviews
Sign in to write a review.
No reviews yet. Be the first to review this game.











