Responses
I think someone said there is work on a fourth novel, but as for the third which is thus far considered the end:
Kinda, its like heavily implied, but the author hasnt actually written it out in detail
Yes, they make plans to have that as their "honeymoon." But we never see it actually happen.
SPOILER :
Seiichiro decided to stay with Aresh.
guys to those who have read the novel, will aresh join kondou if they ever return to their original world?