While I was watching TOTN-T I couldn't help but be reminded of Angel's last mission.
While the plots, relationships and powers are very different, both plots focus around a couple who have known each other across timelines and cannot find a way to fight their fate.
Both have a clear figure who is similar to a parental figure who attempts to break the couple up, before helping the ML and both couples will do anything (including self-sacrifice) to save each other.

However, the characters and plot show little similarity. In ALM, the ML appears naïve, gentle and kind, whereas the FL is arrogant, slightly cruel (at the beginning) and desires revenge. This plot focuses more greatly within the FL's family, and is much more of a crime led drama with the backdrop of the forbidden couple