Let's do this until we think of a suitable new name.
Wear quickly, don't slice, wear together. In some worlds, the protagonist loses his memory. Sometimes he has the original memory. Sometimes the male protagonist has no memory. Sometimes the female protagonist has no memory. Sometimes there is no memory.
Most of the backgrounds are in the world of heroines, and there are also non-heroine worlds, but the heroine cannot give birth to children. There may be fanfics where the gender is changed, or there are fandoms where the gender is not changed and the heroine is directly transformed into the heroine. Sometimes the person the male protagonist wears will be miserable. There is no guarantee that the body he wears in every world will be clean.
Not in order not limited to
Bugs in the novel about reborn pets (in modern times, the male protagonist was originally cannon fodder by the reborn person, and he tortured and slapped his wife in the face; all have memories)
Infinite Heartbeat (amateur love variety show; double amnesia)
Showing affection can be addictive (not from a female-dominated background, but still a reality show, like The Amazing Race, female CEO × male star; the female protagonist has memories)
Become a King for You (Commander of the Suppression Army × Prisoner of the Rebel Army; the heroine has memory)
Wushuang (the male protagonist marries the original person and the substitute is poor; the female protagonist has memories)
The wife is "not good" (pseudo-zerg, imitating the ant colony setting, with three genders: winged female ants, wingless female ants (without the ability to reproduce), and male ants, the wingless female ant at the bottom of society × the charming male ant; the male protagonist has memories)
You are the desire itself (Interstellar Campus ABO, having an intracranial orgasm when smelling his pheromones, female a×stealing clothes, hugging male o to sleep in erotic dreams every night, only taking pheromone settings; double amnesia)
Guide training camp (female sentry and male direction, guide 101 series develops into a support draft, eventually does not form a group, high positions have priority to match sentinels; double amnesia)
…
Intention: Thousands of worlds, only you are the same