This is a touching drama about a young girl never loved by her parents, who begins to live with a foster family on a small isolated island and how she learns to love again, bonding with her new family. The story is set on Hatomi Island, a small island in the southernmost part of Japan. The population of the island is only 49 people, and the island is so small that you can circle it in an hour. There are no hospitals, no police, no banks, no convenience stores on the island, but it is a beautiful island surrounded by coral, and full of blooming hibiscus flowers. Then, the only school on that beautiful island becomes in danger of being closed…Since there are no more children on the island, the only public institution on the island, the elementary school, which is a symbol of hope, is in danger of being closed. Closing the school means that the island would be abandoned from society, and eventually become an uninhabited island. To try to avoid the school closure, Yuzo Nakama, who was born and raised on the island, has an idea that he will bring a foster child from Tokyo to live on the island. He goes to Tokyo to look for a foster child, and the girl he meets is Ruri Fujisawa, a flashy dressed 6th grader with wavy hair, who has grown up never knowing her parents' love.

本故事改篇自真人真事, 故事的背景是为位于日本冲绳县的一个名叫鸠间岛的小岛, 因距离日本本土遥远, 故被称为「离岛中的离岛」。

在这个名叫鸠间岛的「离岛中的离岛」上, 唯一的学校因为学生人数不足而面临被迫关闭的危机, 为了找寻学生去就读那所学校, 岛上一位叫仲间勇造（绪形拳饰）的人走到东京。在东京, 勇造遇到了一个被亲人遗弃的女孩琉璃（成海漓子饰）, 他就把这个女孩带回小岛居住。故事主要描述这个被亲人遗忘了的少女如何在这个被世人遗忘了的小岛上成长的过程。这是一出充满了笑与泪的真情电视剧, 看后总会令你感动得流下泪来。

这纯朴的孤岛上表面上一无所有, 可是其实这里什么也有, 在这里生活的人们均感受到被爱, 岛上的一切让他们找到家的感觉。虽然偏远, 虽然落后, 可是在这里生活的人们都深爱着这小岛。他们均有着属于自己的故事,　在小岛上所有的命运总是交缠重迭, 发生的一切总是扣人心弦。

故事的主人翁琉璃, 出生后就被父母离弃的她, 根本不明白什么是「爱」及「关怀」。可是当被完全陌生的勇造接到小岛居住后, 这里的人对她无条件的爱, 无条件的关心, 令她感受到前所未有温暖。另外, 照明(小日向文世饰)一直思念着被妻子所带走的女儿，只求见她一面。自治会长新垣治卫私生子的出现，正考验着夫妇俩的情感。而年轻的爱侣，也在彷徨中学会了依赖与包容。于充满人世温情的鸠海岛春风化雨下，原本决心一死的川岛达也（竹野内丰饰）终于为过去找到了一个出口。

对来到这岛的人而言，这里不是终点, 而是全新的起点, 因这里给了人们重新出发的力量。一次又一次的得到与失去之中，人变的更加坚强，更加珍惜当前。在现化社会中人们大都是各家自扫门前雪, 在这种冷漠的现实世界中, 这剧描写出人们真挚温暖的情感, 对别人的无条件关怀, 真的是让大家有一个反思的机会。