⚠️POILER ALERT⚠️
Hello Echo team,
I don't usually write often because developers don't usually reply, but given the story you've provided with this VN, I have to tell you that I loved the story enormously, I saw huge potential in the story and an idea popped into my head that could potentially give birth to Echo 2, so I have to propose it to you.
Let's start at the beginning of the idea (i.e. the day Duke and Brian arrived at dinner and killed Janice):
I said to myself, if this is true, Chase is just having a really big nightmare because he knows he'll soon have to leave and stop seeing Leo.
So to begin the story of "Echo 2":
[Chase wakes up from the nightmare, sweating profusely as he tries to catch his breath, then Leo wakes up in turn.
Chase explains what happened, and Leo tries to reassure him as best he can.
In the days that remain before he returns home, he spends his time with Leo, working on his project on the town of Echo and trying to unravel the mystery of the town without finding anything conclusive.
On the day of departure, Chase returns home and promises Leo he'll be back.
For about 3 months, Chase goes on with his student life, except that after he leaves, he continues to hear voices and has terrible nightmares.
Riddled with guilt at not having been able to do anything about it, and fed up with the same nightmares about solving the mystery of Echo, he decides to abandon his studies and return to Echo, still with his friends Jenna and TJ.
Once in Echo, everyone meets up to try and solve the mystery (now it's up to you to decide what the mystery is and how they're going to solve it).
After solving the mystery of Echo, Chase decides to quit school and move in with Leo to live out their lives as lovers.] :3
Naturally, they left the town, leaving it abandoned and giving way to the story of Arche.
Of course, this is a script I've imagined, but it's up to you to decide whether or not you'd like to take inspiration from it (and I hope you do, because the end of Echo "1" was too sad and a bit dark).