You are going to die soon OR you decided to not drop another anchor ever again...
What happened? Something will happen and it will happen again. Is it horror?
so my spin is...Could be a rom com, mc always choose to falling love and live like its the one and only life, die of old age and respawns.
It doesn't make much sense for such a scenario to be unknown. It's only maybe possible if you had decided to not drop another anchor ever again, which you would know and have made that decision before this last run, which means there is no horror to it. It just can't be an unknown, as why would you make the same decision you don't know you will make every run for over 3000 runs if you didn't know?
Statistically, mc can not be choosing to live the same way without knowing it beforehand. Like he can't be choosing to fall in love with the same girl every run for example, unless he already had a solid relationship with a girl before, and knew his plan in life. So statistically, unless mc has already planned his whole life and knows exactly what he wants before he even sets the respawn point, and he somehow decided with unshakable conviction that he will never use this power ever again(which would be bs tbh, no one has unshakable will, and it would be rather stupid.), this scenario wouldn't make much sense. Even in the case he has everything planned and great conviction, he still won't be able to live the same way anyways. There will be runs where he will become destitute etc., or be in an accident that leaves him crippled but doesn't end the run, or he will have a falling out with the girl he loves as his life branches in a very different way, or the girl he loves will get into an accident etc. You get the gist. Randomized even if you plan everything, as life never really goes according to plan. And in every life, he will somehow make the same decision to never use the power again to set another respawn point, for eternity? That sounds unlikely yea?
With his power, to make any use of it you literally have to decide on a goal before you set the respawn point in time. Like for example, you can even just set a goal to win the lottery for this anchor point, and just try over and over again. You don't get to remember it anyways, so you try by changing numbers accordingly with the number of respawns, thousands of times if need be, till you achieve the goal you have set for this anchor and pull the anchor forward after deciding on another goal. Every anchor point, you would have goals to achieve beforehand.
If there are over 3000 tries, but you haven't made the decision to never put an anchor down ever again beforehand or don't have a set goal to achieve before, it would rather indicate that you are somehow hitting a dead end very soon rather than living out a full life, and it's unavoidable. The only unavoidable death flag i can think of is already having an incurable disease and he always gets to find out soon after his respawn, like from a routine check up, which he would likely be able to deduce after respawning. At which point he obviously wouldn't be putting any new anchors, since if there is even the smallest chance of survival, the more time you have in between respawn and death, the better your odds would be. And unless your house is spontaneously gonna explode in the next second after respawning or something, even if a wide range disaster were to hit the region you would still manage to survive with infinite tries if you had just a few hours of buffer in between your respawn and death. Most disasters are avoidable or survivable if you try enough times, even if you fully base it on chance.
