
相合傘のルール
Three umbrellas. One stranger. A thread of fate.
In rain-soaked Amagase everyone knows the old rule: share an umbrella with the same stranger three times and the red thread of fate ties you together. Lighthouse mechanic Hana Mizuno calls it nonsense, until sudden downpours keep landing her under the battered blue umbrella of Ren Takeda, a wandering cartographer who never stays anywhere longer than a season. While her grandmother Fumi and the nosy ferry captain keep count, Hana has to decide whether a man who always leaves could be the one who stays.

Hana Mizuno
Lighthouse mechanic
A practical, stubborn 24-year-old who keeps Amagase's lighthouse running and insists the umbrella rule is nonsense.

Ren Takeda
Wandering cartographer
An easygoing mapmaker with a battered blue umbrella who never stays anywhere longer than a season, until now.

Fumi Mizuno
Tea-shop grandmother
Hana's sharp-eyed grandmother who runs the tea shop, firmly believes in the rule and keeps the tally.

Goro Isobe
Nosy ferry captain
The harbour's binocular-toting ferry captain, who notices everything and counts every umbrella.