It's Amazing!? Seven Wonders of School

Shizuka's piano teacher is going to hold a concert, and Shizuka is invited to participate in the rehearsal of the concert, which is held at the former site of her teacher's alma mater, Omoizawa Elementary School. It just so happens that Nobita, Suneo, Gian and others can take this opportunity to go to the villa there to escape the summer heat. The next day, Nobita, Shizuka, Gian and Suneo gather in Omoizawa. When they meet up with Shizuka, Gian and others tell Nobita that the elementary school here is famous for seven wonders... The first wonder is: the bronze statue of the elementary school will cry, and the second to seventh wonders are: the screaming Beethoven portrait, the laughing skeleton, the stains that attack people, the ghost in the mirror, the monster in the toilet and the inexplicable piano sound in the gymnasium. Nobita actually forgets to bring the kettle over, and is discovered by Doraemon. While Shizuka is not there, Nobita, Gian and Suneo come to the school and hear Shizuka playing the piano. The piano teacher criticizes the students for being too noisy and doesn't believe in the "Seven Wonders". Nobita and his friends see Shizuka crying and want to take revenge on the teacher. Suneo dresses up as a monster and makes a fool of himself, scaring the students. However, the students mistake Nobita's scream for Beethoven's voice and are frightened again. Doraemon learns about Shizuka's experience and specially prepares a gadget "Daydream Disc" for Nobita. It happens that Gian prepares a wet rag. When the piano teacher goes to see the photo of his former teacher, Gian throws a rag at her, but she walks away. Suneo finds the lost bed sheet and is stunned by the statue. Gian uses a skull to scare the teacher, but accidentally scares Nobita and Doraemon. Gian trips over a water bottle, but loses the flashlight and the skull. Nobita uses the gadget to imagine Nobita's mother, which scares Gian and Suneo. Doraemon uses the CD to imagine a mouse, which scares the two to run away. Gian and Suneo are frightened again. The "Daydream CD" accidentally falls on the teacher's head, and the teacher thinks of her former piano teacher. Nobita and the others think that there are really seven wonders, and they go to find Shizuka. Shizuka goes to the gymnasium to see what is going on. Seeing the image of her former music teacher, Shizuka understands the whole story. The teacher says that because of the concert, she is too strict with those people and is sorry for Shizuka and others. The next day, the concert really starts, and Shizuka is finally able to participate.