Responses
I thought this was similar to the ending here!!
https://www.mangago.zone/read-manga/please_help_me_upon_my_arrival/
Yesss! Thank youuu!
No problem!! ^^
I searched for a fantasy BL Manhua, but I don't remember the full plot. But I remember the ending being that the MC and ML should swim in a river or pool that can make them reach immortality or a longer life. And the ending was that they could reach mortality at the end, and the other couple also got a happy ending. I'm not sure if this is the correct description for the ending.