Appli Drive DUO! Offmon Appears

Haru learns how Yujin became an App Driver as they confront a corrupted muscle-building Appmon.

Quotes
Astora: "The only one here who'd do a scary thing, like punch you (Offmon), is Eri!" Eri: "I won't do that." (As a frightened Offmon prepares to blow up the bookstore) Eri: "If you do that, you'll get an explosive punch back into your Appmon Chip!"
 * —Eri taking back her words.

Eri: "Why don't they just stop and take a break?" Musimon: "In this day and age, people can't help but follow what their apps tell them to do."
 * —It can be observed in the Appmon universe that the society relies too much on technology.

Musclemon: "I am now nine hundred and twenty... one!" Astora: "I'm not feeling it."
 * —Astora, together with the other main characters, unfazed by Musclemon's change in power (from 920 to 921).