
M, a mystery writer, has a girlfriend of five years named F, who disappeared on Halloween night. When a woman comes and claims to be her sister, M begins the search for his girlfriend. Along the way, the people he meets describe a woman very unlike the F he knew.

As M searches for his missing girlfriend and meets peculiar people, his quiet life begins to change.

M visits his girlfriend's workplace, a kindergarten, to find clues to her whereabouts.

M creates his first social media account, and receives his first online threat.

It is past midnight at BAR Lighthouse and only M, a beautiful woman, and Izumi are left.

M spends New Year's at home when he gets a call from his missing girlfriend.


After suddenly going missing one day, F's story is now finally revealed.

M is tasked with looking after a cat and Fukuo reveals a huge secret.

M and F reunite and decide to take a trip. M enjoys himself, but F realizes that she has changed.

One year has passed. People are moving on, and M finds the right way to finish his essays.
Complete episode guide for Because We Forget Everything with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.