The heroine (default name Ayame Kushinada) is the daughter of the head of Yamato Island, an island where each village represents one of the four seasons. The four symbols of the villages are in danger, and it's up to her to purify them and save the island.
Has a (currently incomplete) character sheet.
Tropes that apply to the game:
- Bittersweet Ending: Ayu's Season 1 normal ending. The heroine and Ayu both survive and the island is restored, but Coatl dies saving the Spring Village and is forgotten, plus Ayu's position as the chieftain is not assured.
- His happy ending is a bit of this too, as Coatl still sacrifices himself but he is remembered by the village. It becomes a full-on good ending when Coatl comes back in Season 2.
- Yayoi's Season 1 sad ending, in which the heroine survives but loses her memory, and Ayu leaves the group forever.
- Cast Full of Pretty Boys: Any human male character with a sprite is a rather good-looking guy.
- Childhood Friend Romance: The heroine has this with any of the guys introduced in Season 1.
- Crossover Cosmology: There are several references to Japanese Mythology, but Quetzalcoatl and Leviathan also appear.
- Downer Ending: Most of the sad endings. At least one major character dies in them.
- Kaito's Season 2 sad ending is possibly the worst, since Bahamut kills Kaito and uses his body as a vessel, and proceeds to wipe out all of humanity except for the heroine.
- Elemental Nation: The people of the Summer Village have fire abilities. The people of the Spring Village have wind abilities. The people of the Winter Village have water/ice abilities. The Autumn village is the odd one out, with its people having no elemental powers at all.
- Fantastic Racism: Some of the "city-bred" citizens of the Spring and Autumn Villages look down on the "country-breds" of the Summer and Winter Villages.
- The Four Gods: The villages' ninja schools are named after them.
- Gosh Dang It to Heck!: The words "ruddy" and "poop" are used by Kikyo and Shiroya, respectively.
- Happy Ending: The happy endings. Both the heroine and her love interest survive and live Happily Ever After.
- The Heartless: The ayakashis, black monsters that can take many shapes. They disappear into black mist when killed.
- He Who Must Not Be Seen: Like some other Shall We Date? games, some characters (usually the parents of main characters) are without sprites.
- Intimate Healing: In Shiroya's route, he and the heroine end up lagging behind the rest of the group in a snowstorm. They take refuge in a cabin and strip to their undergarmets so they can share body heat and recover.
- Ninja School: Each village has one. The hidden village's school is particularly harsh.
- Public Domain Artifact: The Three Sacred Treasures of Japanese Mythology. In particular, the Sword of the Gathering Clouds of Heaven wielded by the heroine.
- The other two appear in Season 2, where Mitsuru wishes to use all three of them for his world domination scheme.
- Stock Ninja Weaponry: Several characters use katanas or swords that look similar. Ran uses a claw and Rindoh has a naginata.
- Technicolor Ninjas
- Wham Line: The line in question varies according to the route. In Kaito's route, the line is:
- "If the one, who can wield the Three Sacred Treasures, does not die by the sunrise of her coming-of-age day, Yamato Island will be destroyed."