小向璃子（与田祐希）は、祖父の訃報を聞いて故郷へと帰ることに。４年ぶりに家族全員が揃った通夜ぶるまいで、小向一家は「優しかった」以外に祖父を偲ぶ言葉が出てこないのであった…。そんな中、祖父の遺品の中から出てきたのは“作りかけのプラモデル”。道半ばだと感じたリコは、プラモデルを完成させるべく「矢島模型店」へと向かう。
そこで出会った店主のやっさん(田中要次)からプラモデルを作ってみるように導かれ…。そして、命が吹き込まれたプラモデルを見てリコは…
Komukai Riko (Yoda Yuki) returns to her hometown after hearing the news of her grandfather's death. At the wake, where the whole family gathers for the first time in four years, the Komukai family cannot think of any words to remember their grandfather other than that he was "kind." Meanwhile, among her grandfather's belongings, she finds an unfinished plastic model. Feeling that she is only halfway there, Riko heads to Yajima Model Shop to complete the model. There, she meets the owner, Yassan (Tanaka Yoji), who encourages her to try making a plastic model. Then, upon seeing the plastic model come to life, Riko...
