A man who wakes up in an unfamiliar facility and has lost his past memories.
Characters and the opening situation
He only remembered the three dreams he had just had: learning that dream records could save Nagi, and also learning that the house arrest environment was arranged by his own self before losing his memory. He then revisited his own experiences through his final dream.
The identity in the conceptual diagram of the daydream
CASE0 Childhood worked for his mother, who couldn't work, and possessed absolute memory. Later, he became a researcher under Yuma. After Senagi suffered a memory breakdown, he decided to stop the experiment and break ties with his mentor; The plan to restore Senagi leads him back to the research facility. In the final scene, he tells Senagi's story in the virtual world.
CASE0 (2020 original edition)
In the 2020 original CASE0 childhood segment, Kaito receives a kiss from Senagi on the forehead in a cornfield.
In the 2020 original CASE0 youth segment, Kaito's research progressed, and he went home to tell Senagi that he could move to the middle level, but left after a disagreement. After Yuma explains Senagi's past family situation, he visits Senagi's former home to talk with her again.
Steam Version CASE 0: Walking with Izumo
In the later part of CASE0 in the PC Steam version, after the plan to rescue Senagi is formed, Kaito goes out for a walk with Izumo.
Related entries
- Featured works:Conceptual diagram of a daydream
- Assisting with dream recording and rescue:Senagi (conceptual image of a daydream)
- Research Advisor:Traveling horse (conceptual image of a daydream)
- Facilitator:Izumo (conceptual diagram of a daydream)
- Chapter:CASE0 (Daydream conceptual drawing)
- The lover who protects and tells the story in the final chapter:Senagi (conceptual image of a daydream)
- The mentor who broke with him because of Senagi research, but later sought his help:Traveling horse (conceptual image of a daydream)
- In childhood, in the cornfield, he received a kiss on the forehead from the other person:Senagi (conceptual image of a daydream)
- Listen to the other person explain Senagi's past family situation:Traveling horse (conceptual image of a daydream)
- Go to the other person's old home for another conversation:Senagi (conceptual image of a daydream)
- Let's take a walk together after the Steam version of the rescue plan is formed:Izumo (conceptual diagram of a daydream)
References
- Laplacian: CASE-0 Public page text
- Vibbit: Original concept art of Daydream, broken down by CASE completion impressions
- Yuki-chan: Impressions of completing Daydream Concept Map CASE0
- "Impressions" The blueprint for daydreams is finished! 「ネタバレあり」
- Marie Miyake / Laplacian: Voice acting column
Data compiled on: 2026-10-07.