Ep 7. The Mendo Family`s Summer Christmas

Urusei Yatsura season 4 episode 7 is titled The Mendo Family's Summer Christmas. The episode begins with the arrival of the Mendo family at Ataru's home. Mendou, the head of the Mendo family, informs Ataru and his friends that they will be holding a Christmas party in the middle of summer. Ataru and his friends are surprised to hear this, but they accept the invitation.

As the preparations for the party begin, Ataru's mother is seen busy decorating the house with Christmas decorations, while Lum and her friends help with other arrangements. Mendou is shown supervising everything, making sure that everything is perfect for the party.

As the day of the party arrives, guests start arriving at Ataru's house. The guests include the Mendo family members, including Mendou's sister Ryoko, and the members of Ataru's family and friends. The house is filled with guests, and everyone is enjoying the party.

Meanwhile, Mendou's father, who is a scientist, has brought along a special machine that he has invented. He demonstrates the machine to the guests, which can create an artificial snowfall. The guests are amazed by the machine, and they start playing in the snow.

As the day progresses, Mendou's sister Ryoko felts attracted to Ataru and wants to spend time with him. She tries to flirt with him, which makes Lum jealous. Lum gets into a heated argument with Ryoko, and the two start fighting. Ataru tries to break up the fight, but he is unable to do so.

Meanwhile, Mendou's father has decided to test his new invention on a large scale. He powers up the machine and points it towards the sky, hoping to create a massive snowfall. However, things don't go as planned, and the machine malfunctions, creating a massive snowstorm.

The guests are now trapped in Ataru's house, and they are unable to leave due to the snowstorm. The situation becomes worse when the snowstorm increases in intensity, and the guests start panicking. Ataru and his friends try to calm down the guests and come up with a plan to get out of the house.

In the end, the group manages to escape from the house and take shelter at a nearby hotel. The Mendo family has to take responsibility for the malfunctioning machine, but everyone is glad that they are safe.

The Mendo Family's Summer Christmas is a fun-filled episode that showcases the Mendo family's extravagant lifestyle. The episode has a mix of comedy, action, and a touch of romance. With its unique plot and entertaining characters, it is a must-watch for fans of the show.