If the binding and restraining power were too strong, causing the "Oath Stake" to become more harmful than beneficial, thus being judged as a negative force of a non-beneficial nature, it might not affect Reiger, as it could be neutralized by the immunity effect of "Self-redemption." During the development of the "Stake," Morgan had fully considered various issues and added many restrictions to the spell, hence the "Stake" was born in a form that absolutely would not put Reiger at a disadvantage.
The problem was, this made it even harder for Reiger to understand.
Why go through all this trouble?
Setting aside the issue of the "Oath Stake," even if it was just about Morgan using a potentially powerful force in exchange for staying in Camelot for a month, Reiger still could not comprehend her aim in doing so.
Did she think that by marrying her, he would obediently stay in Camelot and live with her "day and night"?
