Ore to Mou Ichido, First Love.

Mia Takanashi, the daughter of a prominent business family, faces pressure to secure her future through marriage. After a car accident causes her to lose her memory, she is no longer certain of her previous choice. Four men, each claiming to be her intended, emerge. With no way to confirm their identities, Mia must reevaluate her feelings and determine which one is truly her partner.