M☆G☆Darling

Ouri wants to marry someone who will protect her, inspired by how her father protected her mother. After declining an arranged engagement, her mother sends her to Clover Academy, a school with many potential suitors. Word about her spreads, drawing attention from many male students. When she finds herself in a difficult situation, she is unexpectedly saved by a guardian named Night, who forms a contract with her to ensure her safety.