[He smiles faintly, taking a sip from his glass.] Thank you, I feel a lot better now.

[Aaaand he sets his glass down.] He...wants you all to stay here forever. You may have noticed that he won't let any of you die. He brings the townspeople back all the time. Those who have died in the explosion today will be back to normal tomorrow. But there is a big difference between you and them.

You're not from this universe. Here, you are special. You and all your friends are subjects of an illegal experiment of an interdimensional level. Your experimental status never ended after Caligin released you--but he isn't the one behind this. The friends and acquaintances you've met and aren't here any longer? Are failed subjects. They didn't pass his requirements, so he let them go. You're just lucky enough to have met them all.