People followed Marriage of Convenience/Contract Marriage page 1

Two people enter a marriage for practical or non-romantic reasons—only to eventually fall in love.
Enemies to Lovers:
Characters who start off in conflict or even hatred gradually develop mutual respect and romance.

Rivals to Lovers:
Competitive or adversarial characters find common ground, turning rivalry into romantic tension.
Childhood Friends to Lovers:
Long-time friends discover deeper feelings as they grow up together, blending nostalgia with new romance.