Altitude sickness.
The tour guide leading our group gave the last oxygen mask to his fiancee's childhood sweetheart.
I showed no reaction, only watching coldly from the sidelines.
In my previous life, my fiancee gave the oxygen mask to me when I was on the verge of suffocating.
The rescue team never arrived, and her childhood sweetheart died from lack of oxygen.
My fiancee calmly married me, but on our wedding night, she strangled me to death.
"If I hadn't given you the last oxygen mask, he wouldn't have died. I want you to know what it feels like to suffocate!"
When I opened my eyes again, memories of my previous life flooded back.
This time, I let her have her wish.
