I wonder if Selebus planned for one of the characters of that game to be Akira's mom from the start, cause if so it is very bizarre that she'd show up at his laptop when he's traumatized by his mom, and looks to Sekai as an alternate mother figure instead. Also, that other characters have played this game apparently?
"yeah Ami, guess what, I just finished that game that has your grandmother in it (and maybe Nodoka's mom as well?)."
Considering Sensei in the first Reset apparently meets and talks to Saki from his 'Nothing is Beautiful' game, in the 'Everything is Connected' Happy Event, which if missed is called 'Nothing is Beautiful':
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Which was long before Saki was revealed to be the name of his mother, I'd think it was planned.
Lessons in Love seemed to be intended to be a sequel to it. Of course, I could be wrong and it was just decided afterwards.
Nodoka's mom may show up in the remake, but that game only had a demo, and so far the only character from it that hasn't shown up in LiL (besides Josh?), is dark haired green eyed Reina:
She's kind of like Sana, Karin, and Maya all put together, based off what little was shown of her.
Miu, and Yuu, both showed up in the recent 'Rain King' Happy Event, along with Saki, Kanon, and Tsurumi:
Tsurumi also recently showed up looking
not good in Nao-chan's Chapter 4 'What's in the Pot?' Event:
Some Info on Kanon and Tsurumi from Sel's side game that never came to fruition called 'Grow Old. Then Die':
The Demo of Sel's previous game 'Nothing is Beautiful' can be found on his Itch, btw, if anyone wants to play it and see where things may have started.