Xie An is an omega without glands and cannot be marked or reverse marked as an alpha.
He has no glands and will not be marked, making him the most suitable candidate to be a comforter.
He always felt out of tune with this world, until he was needed...
It's just that there are a few more people who need him than he thought.
Interstellar, Qiangqiang, ABO setting has a private setting, a story of a heartthrob O and five A's that cannot be marked.
Intention: stick to yourself
There are too many locks, it's so heartbreaking