A story about Kotarou Tennouji's journey through multiple timelines and his relationship with Kagari as they try to save humanity from destruction.
Story Structure — 4 Plot Phases
Mystical Beginnings
Kotarou Tennouji's life in Kazamatsuri as he joins the occult research club and encounters mysterious phenomena.
Key Events
Moon Beginning — Story begins on the Moon on October 3, 2010 Characters: Kotarou TennoujiLocation: Moon
Occult Club Formation — Kotarou joins occult research club with five girls Characters: Kotarou Tennouji, Akane Senri, Kotori Kanbe, Chihaya Ootori, Shizuru Nakatsu, Lucia KonohanaLocation: School
Kagari Encounter — Kotarou first encounters Kagari in Kazamatsuri Characters: Kotarou Tennouji, KagariLocation: Kazamatsuri
Guardian Membership — Kotarou becomes a low-ranking member of Guardian Characters: Kotarou Tennouji, Guardian OrganizationLocation: Kazamatsuri
Fateful Encounters
Kotarou's encounters with Kagari and his involvement with Guardian organization lead to injury and amnesia.
Key Events
Guardian Membership — Kotarou becomes a low-ranking member of Guardian Characters: Kotarou Tennouji, Guardian OrganizationLocation: Kazamatsuri
Injury and Healing — Kotarou is injured by Kagari but healed by Kotori Characters: Kotarou Tennouji, Kagari, Kotori KanbeLocation: Kazamatsuri
Amnesia — Kotarou receives amnesiac drug to forget about organizations Characters: Kotarou TennoujiLocation: Hospital
High School Life — Kotarou attends high school with occult club members Characters: Kotarou Tennouji, Kotori Kanbe, Akane Senri, Chihaya Ootori, Shizuru Nakatsu, Lucia KonohanaLocation: School
Kagari Return — Kotarou meets Kagari again after forgetting organizations Characters: Kotarou Tennouji, KagariLocation: Kazamatsuri
Double Life
Kotarou becomes a double agent working with Kagari against both Guardian and Gaia organizations.
Key Events
Kagari Return — Kotarou meets Kagari again after forgetting organizations Characters: Kotarou Tennouji, KagariLocation: Kazamatsuri
Double Agent — Kotarou becomes double agent to help Kagari Characters: Kotarou Tennouji, Kagari, Guardian Organization, Gaia OrganizationLocation: Kazamatsuri
City Destruction — Gaia attempts to force re-evolution, destroying part of city Characters: Kotarou Tennouji, Kagari, Sakuya Ootori, Gaia OrganizationLocation: Kazamatsuri
Kagari Stabbing — Kotarou unwillingly stabs Kagari as part of evolution Characters: Kotarou Tennouji, KagariLocation: Kazamatsuri
Evolution — Kotarou and Kagari evolve into orb of light inside tree Characters: Kotarou Tennouji, KagariLocation: Tree
Evolution and Aftermath
Kotarou and Kagari's evolution into an orb of light, the ice age, and the girls' journey to the Moon.
Key Events
Evolution — Kotarou and Kagari evolve into orb of light inside tree Characters: Kotarou Tennouji, KagariLocation: Tree
Ice Age — World experiences ice age outside Kazamatsuri Characters: Akane Senri, Kotori Kanbe, Chihaya Ootori, Shizuru Nakatsu, Lucia KonohanaLocation: Outside Kazamatsuri
Giant Tree — 500-meter tall tree grows in Kazamatsuri Characters: Akane Senri, Kotori Kanbe, Chihaya Ootori, Shizuru Nakatsu, Lucia KonohanaLocation: Kazamatsuri
Familiar Transformation — Club members transform Kotarou into a familiar Characters: Akane Senri, Kotori Kanbe, Chihaya Ootori, Shizuru Nakatsu, Lucia KonohanaLocation: Tree
Kazamatsuri Mysteries — The supernatural phenomena and unidentified animals in Kazamatsuri
Occult Research Club — Kotarou and five girls investigating mysteries
Unidentified Animals — Mysterious creatures reported in Kazamatsuri
Organizational Conflict — The battle between Gaia and Guardian organizations
Gaia Organization — Led by Sakuya, aims to annihilate humanity
Guardian Organization — Kotarou's former organization protecting humanity
Kagari's Mission — Kagari's quest to save humanity through re-evolution
Re-evolution — Process to save Earth and humanity
Moon Research — Kagari's research on the Moon
Multiple Timelines — Different story paths and outcomes
Heroine Routes — Five different storylines with each girl
Unified Kotarou — Kotarou as entity from all timelines
Evolution and Aftermath — The transformation and consequences for the world
Orb of Light — Kotarou and Kagari's evolved form
Ice Age — World outside Kazamatsuri frozen
Giant Tree — 500-meter tree containing the orb
Green City Kazamatsuri is a city built on the ideal of a harmonious relationship between civilization and environment.. However, the peaceful Kazamatsuri will soon be faced with its annual commotion, the Harvest Festa at the turn of the year. It's an event that is much like a massive school festival, and Tennoji Kotaro decides to head out to research topics for his articles. It's an easy decision for him, because the town is filled with rumors about unidentified creature sightings and various other occult occurrences. At the same time, strange things start happening to Kotaro himself.
