I'd say for a time loop manga, this is a good setup. At least we have all of the ground works ready so the readers wont suddenly get a deus ex machina of someone else saying OH WELL I KNEW THE PAST TOO!
or getting betrayed out of nowhere and out of character of someone. I hope the writing is...
@conicalPendulum420 looks like you read a wayyyyyy different manga from the rest of the comments. or you're projecting. I hope you found someone you love.
anyway that was a good chap