A new item called "soulmate" has been assigned in the universe system. At the age of 17, everyone, without exception, has a special mark on their wrist, just like your soulmate has. To tie the knot and satisfy the system, you have to rub your wrists in the place where you have a label, otherwise nothing will work.

Not to say that Stephen was glad when he woke up in the morning and noticed a hieroglyph on his wrist. He thought the whole soulmate fuss was overrated.

— It's crazy..