Jinpei Matsuda was reborn at the moment he entered the police academy, and was given a System, too.
Is this some kind of save-and-load thing? But... what kind of System knows nothing when you ask it anything, gives you a script, and then has nothing else to offer?
Matsuda: A shop?
System: Nothing like that.
Matsuda: Missions?
System: What does that have to do with me? What missions? How would I know?
Matsuda: Supernatural phenomena?
System: I'm perfectly scientific.
Matsuda: ...Do you believe that yourself? If you're scientific, how did I come back to the past?
System: ...[Insufficient permissions].
Matsuda: ...Has no Host ever complained about you for anything besides that?!
System: [Insufficient permissions]. Jinpei Matsuda, as Host ●, is not authorized to access this information.
Matsuda: Heh.
●●●●: Bourbon, you seem less useful than that cop who's been hopping around right in the Organization's face lately.
Amuro Tooru: ??
Who? Jinpei Matsuda?
●●●●: How about keeping an eye on him? Gin's been pretty annoyed with him lately.
Amuro Tooru racked his brains, but couldn't figure out how his good fellow recruit had gotten on the wrong side of the Organization's higher-ups. He wasn't involved with them, was he?!
Theme: It's the road he chose for himself, so of course he has to walk it himself.
It's very well written, please keep updating.