Remo is now a spy and needed a deep cover.
When he asked Hasegawa San to stay in another hotel, the reason was to maintain his deception.
He now lives in two different roles where both individuals possess two distinct personalities able to see issues on both sides.
Each one has its own personal history, traits, and behavior.
The first role is a floater who terminates legally the enemy of the state until caught basis.
Although there are various elements concerning its purpose, methods and practice, it is explicitly stated in the international law.
The other player is portrayed as an ordinary employee attending activities related to his works in the company.
He is referred to as the subject who knows nothing in the secrecy and access to the state.
It's a part of disinformation during any trial of the court --- if ever it gets there!
The distinction would be hard to establish between two identities.