Puddle Monster Fish

Nobita goes fishing with his father, Shizuka, and Doraemon by the river, and it happens that Suneo also comes with his father and Gian. Suneo's father uses the latest type of reel and keeps catching big fish, but Nobita's father can't catch half of the fish, which makes Nobita and the others quite disappointed...

Seeing that they can't catch any fish, Suneo tells them that there is a swamp behind the river, which seems to be a good place for fishing, but they still can't catch anything when they go there. Later, Nobita finds out that Suneo has lied to them. It is just a big puddle, not a swamp at all!

Nobita can't bear to tell him the truth when he sees his father catching fish so desperately, Doraemon says, "If there is no fish, we can just put it in by ourselves!" and takes out the " Revertion Light".

He takes out the bonito rice balls in the bento they brings and lifts it back to the light, and bonito appeared! Nobita turns the salmon rice ball into a big salmon and put it in the puddle, but Nobita accidentally restores all the food they bring, including the chicken. Nobita tells Shizuka about this, saying that he catchs a lot of fish. Cow and pig chase Nobita.

Until the end, Gian and Suneo keeps complaining about Nobita.