Return of the Acolyte - Vol. 1 Ch. 2

[MangaDex]

 

[Valve]

It hinted heavily at it in chapter 1 and chapter 2 is no better, just another NTR BAIT story, where every interaction is meant to make you feel worried that the FL will leave ML for some other guy.
Japan has really been spewing these kinds of stories out lately, hundreds of them.