Don’t Run, My Secret Identities Are All Kinda Weird

[No romance in the main story + summoned secret identities + supernatural + eerie]

When An Rong turned twenty, he inherited a supernatural investigation agency and was bound to a System.

System: Complete missions to create secret identities with incredible combat abilities who can help you out.

An Rong: There's such a good deal?

So he made four of them...

System: Don't worry, they'll naturally be fond of you.

An Rong believed it.

Until one day, Secret Identity Number One cornered him against a wall, his gray eyes frighteningly intense. “That's not part of the character setting.”

Secret Identity Number Two dropped all his usual joking around. “Calling you Master is something I chose to do.”

Secret Identity Number Three gripped his wrist, his palm burning hot. “I'll become even stronger.”

Secret Identity Number Four rose onto his toes and whispered in his ear, “Big brother...”

An Rong's back pressed against the wall, his heart pounding like it might burst.

...Did this System get the wrong script?