One Summer Story

上白石萌歌

Sakuta Minami

細田佳央太

Moji Shouhei

斉藤由貴

Minami's Mother

豊川悦司

Minami's Biological Father

千葉雄大

Moji's Older Brother

古舘寛治

Minami's Stepfather

品川徹

Moji's Grandfather

湯川ひな

Miyaji

富田美憂

Koteko (voice)

浪川大輔

Count Cement (voice)

櫻井孝宏

Mortar (voice)

鈴木達央

Concretarō (voice)