I don't even pay attention to Jill, so I'm not going to comment on her preview, I don't even remember what it's like, but in the preview with Zoey the MC seems to be informing her of something bad, either it's something between them, or with someone they know, It's just an assumption, but it fits.
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In the preview with Riona, the MC is unshaven, clearly upset about something, and Riona is comforting him.
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In most of the previews, the MC is happy and clean-shaven, so only towards the end of the chapter should something happen, something that should make him stop taking care of himself, if it's something related to Neil, we don't know, let's wait and see.
And I found the dialogue between Neil and the MC:
scene ep7_diary73 with dissolve
dad "As far as my supervisor is concerned-" <-----
scene ep7_diary74 with dissolve
mc "I thought you were the supervisor." <-----
scene ep7_diary72 with dissolve
dad "Supervisors have supervisors too."
dad "And as far as he is concerned, I went to the dump with the furniture we're replacing."
scene ep7_diary74 with dissolve
mc "Wait... Why are you working on a Sunday?" <-----
scene ep7_diary73 with dissolve
dad "We need to clear out the rooms of the hotel by tomorrow afternoon, and that means overtime."
scene ep7_diary74 with dissolve
mc "I see. Don't work too hard. You need to rest too." <-----
scene ep7_diary73 with dissolve
dad "Don't worry; I'll take a day off next week instead."
And again, why would someone as meticulous as the DPC "waste time" with this dialogue?