Digimon Universe: Eri Karan (Episode 36)

This episode is where Eri was with Knight Unryuji, who congratulating her for being at the Top 10 of the idol group, AppliYama 470. But after realizing the idol group was created by L Corp which is run by the evil A.I. Leviathan, she refused to take a part of the corporation due to how twisted the A.I. is on normal people and Appmon. After that, Knight then assembled his Ultimate 4, a team of strong Appmon under Leviathan's commands that easily destroy both the main App Drivers' buddies (Gatchmon, Musimon, Hackmon and Dokamon) and AppDrives.

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Digimon Universe: Eri's Socked Feet

Here's a few socked feet scenes from her debut episode (Episode 5), 6, 8 and 21. Don't make her mad over how awful her socked feet are, or she will send you an explosive Big Bang punch for insulting her and her feet.

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Digimon Universe: Eri's Idol Training (Episode 21)

This is from working her way to be a top tier idol in order to be one of the Top 9 members of Appliyama 470 (the number 470 is the exact number of idols in the group). She was being trained by Coachmon despite the fact he was ordered by Mienumon, Leviathan's generals, wanted to kill her with Virusmon. Coachmon refused to do that and helped Eri to defeat the infected Weatherdramon, who got infected the L-Virus made by Virusmon. Her Digimon (Appmon) was Dokamon, an fighting-type Appmon, who can digvolve into Dosukomon and this episode AppFused with Coachmon into his Ultimate form, Oujamon.