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October 5, 2025
Season 1
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01. My Friend's Little Sister Has It In for Me
Akiteru just wants to work toward his future, but his friend's little sister won't allow him any peace.
24min
October 5, 2025
02. The Cousin I Haven't Seen in Years Is Cold to Me
Now that Mashiro has moved to his school, can Akiteru manage to make her open up to him?
24min
October 12, 2025
03. Only I Can Be a Pain to My Uncle’s Daughter
Akiteru decides to throw a welcome party for Mashiro, but first he must convince her to attend.
24min
October 19, 2025
04. My Friend's Little Sister Might Be a Delinquent
Akiteru and Iroha recall how they first met.
24min
October 26, 2025
05. My Friend's Little Sister Keeps Getting Close to Me
A look back at how Iroha came to be the voice actress for 05th Floor Alliance.
24min
November 2, 2025
06. My Friend's Little Sister Has It In for My Friend's Enemy
While at the mall with Mashiro and Iroha, Akiteru learns why Mashiro left her old school.
24min
November 9, 2025
07. Episode 7
No details
24min
November 16, 2025
08. Episode 8
No details
24min
November 23, 2025
09. Episode 9
No details
24min
November 30, 2025
10. Episode 10
No details
24min
December 7, 2025
11. Episode 11
No details
24min
December 14, 2025
12. Episode 12
No details
24min
December 21, 2025
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