Shinjiro Linked Episode dates? (spoiler)

[Keyesty]

So, Episode 1 for both Shinjiro and Koromaru appeared for me at the same date 9/4
I've talked to Mitsuru and obtained reinstatement form, but then went to do Koromaru's event knowing from P3P that I should be able to visit Shinjiro later.
...except it didn't work that way, he never appeared at Station again.
How am I supposed to complete Koromaru and Shinjiro Linked Episodes?
Is it even possible to do that in same playthrough?

[TimurSokol]

I believe that Koromaru event can be triggered on the other day, because after I did Shinji it appeared to me later

[XenoEvil]

You do Shinjiro first because he has an early deadline while koromaru doesn't.