All Heroines make comments heavily suggesting they know about the secret of the world. I paid a lot of attention to that when I last read it. That was 2 years ago though, so I don’t remember the details; I just have my not so helpful notes from the time. My conclusion anyway was that everyone knows but not 100% of the time: they are sometimes made to forget things. I drew on a lot of stuff from the Refrain topic too. Little Busters! - Refrain Arc Discussion
About Komari
So after the hotcake party, on the 27th, it’s hinted that Komari knows the secret. On the 28th however she doesn’t know about Riki’s narcolepsy so her memories might have been tempered with.
About Haruka
Kanata helps Kud throw away her stuff and speaks like she has done it many times, which she probably has.
She also says april was a long time ago. for Riki it’s 2 months but for the others it’s much longer.
When they’re fixing the bench Haruka makes it sound like her memory has been messed with.
About Kud
Kud doesn’t remember her mother’s accident. When she appears on the news, Kud starts realizing something is wrong. She has nightmares of the accident but she can’t remember them after waking up. When they hear of the crash, she remembers it all. The accident in Tevua happened only about a week before the school trip. Kud’s struggle had to be locked up and is being solved in real-time, in the route.
