Because I Don't Like My Big Brother At-All--!!
Season 1, Episode 7: My Brother and His Friends' Akiba
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Shūsuke and his friends go on a trip to Akihabara in search of adult goods while Nao and Iroha decide to follow them. After visiting an adult DVD store, the group gets into an argument about their desired fetishes and break off in search of them, leaving Shūsuke alone. However, they soon come to apologize to each other and go to a maid café holding a 'little-sister' service.
All Episodes - Season 1
Episode 1
Wicked Usual Day of a Brother And Sister
Episode 2
Twintail, Attacking Brother and Sister
Episode 3
A Rival Appears! Brother and Sister in Huge Trouble!
Episode 4
If My Little Sister Wore a Swimsuit
Episode 5
Mister X Strikes Brother!
Episode 6
My Brother has Dreams of Black Panty Stockings
Episode 7
My Brother and His Friends' Akiba
Episode 8
Aim for Brother's Top!
Episode 9
Summer! Festivals! Brother and Sister's M:i:V
Episode 10
Brother Saves the World
Episode 11
Calling Out to Brother from the Center of the World
Episode 12
I Don't Like My Big Brother at All!!