There Aren't Many Customers at the Karaoke Box

Finally realizing that video games are not helping them in their mission, the Neighbors decide to kick off their summer club activities with a trip to the karaoke joint. They soon learn that Yozora and Sena can be at each other's throats even when they're in different rooms.
— FUNimation

Plot Summary

There Aren't Many Customers at the Karaoke Box
Kanji カラオケボックスは客が少ない(つд⊂) Romaji Karaoke Bokkusu wa Kyaku ga Sukunai
Theme Music
Opening "The Regrettable Neighbours Club Two and a Half Stars" Ending "My Feelings" (List of theme music)
Eyecatch
End Card

As Kodaka has a dream about his childhood friend, who he didn't get to say goodbye to before he moved, the Neighbors Club makes plans to go to a karaoke box. After feeling they are being cheated by the pricing system, Yozora and Sena end up in separate rooms while Kodaka and others share one. After the karaoke, Sena tells Kodaka that her father is interested in meeting him, which makes Yozora feel jealous.