I Don’t Want To Be the Main Character

He was reincarnated as the eldest son of an insignificant aristocratic family.

Even if the reincarnated world is a little strange somewhere, it’s covered for a while.

– Eileen, Grand Duke of the North, is aware of the return and is confused.
– Realizing that Admiral Racile has returned, he soon turns the fleet around.
– Princess Elena ponders the past and prepares for a visit to Count Weiss.

What is this?