Onee-chan Gokko
Winter 2026

Onee-chan Gokko

Playing Sister

A psychological thriller that toys with identity and paranoia across just three episodes, raising more questions than it answers. The premise is unsettling, but uneven execution keeps it from reaching its full potential.

6.4ONA3 episodesStudio Gohan

Ideal if you're looking for dive into twisted psychology without committing to a lengthy narrative.

In the distant future, on the outskirts left behind by the rapid concentration of advanced science and technology in urban areas, lies a remote mountain village known as Kagami Village. “Behave yourself, or a Double will come for you.” Such old folklore still lingers in this village. Akane Higure, a middle school student living in Kagami Village, has been eagerly awaiting the return of her older sister, Sui Higure, who is finally being discharged from the hospital after a year. However, not long after her sister comes home, Akane receives a single phone call. “The girl at home with you… isn’t your sister.”

Preview

Trailer

Cast

Characters

Akane Higure
Akane HigureMainErika Miyazaki
Sui Higure
Sui HigureMainIsekaijoucho
Mari
MariSupportingArisa Sugimoto
Onigiri
OnigiriSupporting
Sonohokasei
SonohokaseiBackgroundReina Nagano
Team

Staff

Harumaki Gohan
Harumaki GohanStaff
Miku Hatsune
Miku HatsuneStaff
ozumikan
ozumikanStaff
Kuen
KuenStaff
Frequently asked questions

Questions about Onee-chan Gokko

How many episodes does Onee-chan Gokko have?

Onee-chan Gokko has 3 episodes.

Is Onee-chan Gokko a movie or a series?

Onee-chan Gokko is a ONA.

When did Onee-chan Gokko premiere?

Onee-chan Gokko premiered in Winter 2026.

Is Onee-chan Gokko available to stream?

Yes, you can watch it on YouTube.

Is Onee-chan Gokko worth watching?

A psychological thriller that toys with identity and paranoia across just three episodes, raising more questions than it answers. The premise is unsettling, but uneven execution keeps it from reaching its full potential. Ideal if you're looking for dive into twisted psychology without committing to a lengthy narrative.