Nelly TBH

Iwazaki who lives in Japan, finds a will from his father, Izuki, which leaves a chocolate box containing a will. He was surprised to find the fact that he had to share the inheritance with his older brother, Izumi, who lives in Indonesia. It turns out that his father married an Indonesian woman during the Japanese occupation of Indonesia in 1942.

Being scolded while playing, three children plot small revenge on an old lady. A decision they regret later.