How far is it from the horizon? - Deep blue sky and pure white wings -

How Far to the Horizontal Line? - Deep Blue Sky and Pure White Wings - is a romance adventure game themed around flight and campus clubs. The Space Science Society to which Hirayama belonged faced a survival issue, so the members entered the light-powered glider competition.

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Setting out for the sky

The story is set in the near future where flying gradually approaches everyday life. The Space Science Society, which originally lacked active activities, needed to prove its worth through competitions. Airframe building, pilot training, and campus life intertwine; members share responsibilities under common goals and build deeper relationships during preparation.

Main character route

The original PC arc revolved around Tomokatsu Miyamae, Himuka Nakano, Kokei Tsuyazaki, Sayako Koga, and Mariya Hanami. The choice of route depends on whether the protagonist invests time in flight training or in crafting the aircraft, and the experiences of different characters gradually unfold along with these daily divisions of labor. The work arranges personal relationships within a single club program.

Differences in additional content

Subsequent additions include some characters joining Another Story or epilogues, and adding routes for Chidori Mizumi and Minoru Uemura. The 2012 PSP "ORIGINAL FLIGHT" also featured its own characters and story arrangements, including content related to Masumi Kashii. The original PC main game, additional content, and PSP version must be introduced separately; not all subsequent routes are included at the time of initial release.

Division of labor and competition among associations

Pengxia is responsible for piloting, Yangxiang builds and maintains the unit, Lakeview writes control programs, Sayako coordinates activities, and the instructor provides technical guidance. Kuuta gathers several partners skilled in different fields to compete with the Aviation Department for a spot in the competition; Aviation Minister Mariya later assisted with training and maintenance as well. The water surface is recorded by the reporting committee for the race.

PSP personal route

Pengxia attempts high-difficulty flights, Yangxiang faces a new control technology failure, Lakeview suffers a relapse of illness under programming development pressure, Sayako suddenly disbands her club after the race, and Mariya and Kurata face choices arranged by their pilots. Each track links team responsibilities with individual circumstances, and the epilogue continues into the second semester.

Two new stories have been added

The water route begins with an interview, tracing an old photo between her, Sorata, and Tomoka. Masumi is a transfer student from a maritime city. Her parents are involved in developing the rail elevator base, longing for space but afraid of interacting with people; Her route led the Space Science Society to switch to meteor shower observation after failing the pre-selection.

PSP production and version

ORIGINAL FLIGHT was released on December 20, 2012, with Kureto Fukasaki and Shinobu Kurotani responsible for the key animation, and a script signed by Nanso Railway and Romeo Tanaka. Masumi and the water route were added, the original five female leads all have epilogues, and the opening and ending themes have been remade.

Source: Structured works maintained by the Bangumi community, filtered and rearranged by this site.

Related entries

• Characters:Sorata Hirayama (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• Characters:Tomoka Miyamae (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:あおきさやか
• Characters:Nakano Hinata (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:and gave birth to Renmei Tianmu
• Characters:Lake Tsuyazaki (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:Ryoko Ono
• Characters:Sayako Koga (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:いのくちゆか
• Characters:Mariya Hanami (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:Mai Goto
• Characters:Chidori Water Surface (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:Yuzuhara has a village
• Characters:Masumi Kashii (How far is it from the horizontal line?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:Eri Kitamura
• Characters:Instructor (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:as if following the original rules
• Characters:Minoru Uemura (How far is it from the horizon?) - Deep Blue Sky and Pure White Wings -)
• PSP ORIGINAL FLIGHT version voice actor:Shiraishi Ren
• Setting and Setting:Uchihama Gakuen
• Setting and Setting:Uchihama Gakuen Space Science Society
• Setting and Setting:Uchihama Gakuen Aviation Club
• Setting and Setting:Uchihama Gakuen Reporting Committee
• Setting and Setting:CHALLENGE to HORIZON
• Game System:The horizontal line branches out of the ORIGINAL FLIGHT route
• Key Animation:Kokuto Fukasaki
• Key Animation:Shinobu Kurotani
• Scriptwriter:Nanso Railway
• Scriptwriter:Romeo Tanaka
• Related versions:How many miles to the horizon? -ORIGINAL FLIGHT-

References

• Bangumi work entry: How many miles to the horizon? - Deep Blue Sky & Pure White Wings -
• Bangumi Copyright Notice
• MANTANWEB: PSP version story summary
• KANNAGI: PC version and additional content playthrough notes
• Alchemist: Horizon PSP characters and production
• Alchemist: Horizontal line common and Pengxia route
• Alchemist: Horizontal, four heroines route
• Alchemist: Horizontal Line New Characters and Release

Source author: Bangumi article contributor and community maintainer; License: CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/); Adaptation: This site filters and reorganizes structured facts, without copying the article summary.

Data compiled on: 2026-10-07.