If I change my relationship type, will the entire history remain even if I eventually change it back?

Maezawa from Shacho-shitsu here. Staff can see the full history of any changes to your dating type. However, men can only see the date, time, and details of the most recent change. That said, if a man asks about it, staff may tell him something like: “You changed it from C to B, then to D, back to C, and then to B, so it seems a little suspicious.” So I recommend thinking it through carefully and avoiding making multiple changes.