Digimon Adventure 02 Drama CD: The Door into Summer

The Door to Summer (夏への扉) is a 2003 CD drama. It is the second in the Digimon Adventure 02 continuity.

Overview
In the summer of 2003, Davis and DemiVeemon go to New York City. They hope it will be better than last summer. However, it's not off to a good start for Davis. He lost a soccer match, Kari turned him down and Cody got a girlfriend before him.

They meet up with Mimi, Willis and Gummymon. Davis keeps hearing a voice but nobody else notices it. Finally, without warning, the entire city falls under a strange winter and becomes deserted. Willis thinks it could be because of Davis' cold emotions. Everyone decides that they should go find warmer clothes for the weather. After getting some coats, Mimi says that their situation reminds her of a story she once read about a cat looking for the door to summer during a snowstorm. The cat's owner also wants to find the door because things are going wrong in his life just like Davis. He continues to hear the voice and as it gets colder, the kids see fireflies. They then meet a nameless girl, whom Mimi names "Nat-chan" from the Japanese word for "summer" (夏). She takes a strong liking to Davis and can't remember where she came from.

The kids and their Digimon wander around and find out that they cannot Digivolve. They also see some large claw prints on trees and some other trees torn down. Even a house has been mowed down! Then Nat-chan gets into a snowball fight with Davis leaving everybody else, including DemiVeemon, out. She tells Davis that they should run away and leave everyone else behind. Davis refuses and returns to the others. Nat-chan then goes over to Willis and starts acting nice and becoming attached to him.

After getting into a fight with DemiVeemon, Davis wanders off but is followed by Nat-chan. She tells him that she's lonely because everyone has a partner except her. Davis says that maybe someday she will get a Digi-Egg. Nat-chan says she doesn't want a Digimon, she wants someone like Davis. Just then, DemiVeemon falls in the water and Davis jumps in after him and saves him. After warming up, they realize that Nat-chan never returned and everyone goes out to search for her.

While searching, the group runs into even more fireflies. Some attach themselves to DemmiVeemon and Gummymon and they start acting weird. They figure out that the fireflies are actually bad data chips. They see Nat-chan again and the chips are coming out of her. They realize that she is a Digimon and the one who made the claw marks and knocked down the trees. Just then, she Digivolves. Everyone runs away except Davis who says that she's just lonely. Nat-chan then disappears along with the data chips after thanking Davis. They then find a Digi-Egg where Nat-chan disappeared from and decide to try to find her partner.