The Childhood Sweetheart of Her Big Brother

The Heroine Transfers to Her Childhood Friend's School, Both Families Are Powerful, and They're Both Top Students

Childhood Sweethearts: The Male Lead Has Been by the Female Lead's Side Since She Was a Baby

The male lead is older than the female lead and waits for her the whole time. I'd like more scenes from their childhood.

Childhood Sweethearts Who've Known Each Other Since Birth, Following Them from Childhood to Adulthood

Childhood friends with an incredibly close relationship, really sweet. They've known each other since birth, and the story follows them from childhood to adulthood.

Childhood Sweethearts, Together Since They Were Little, With Their Parents Arranging Everything Down to the Last Detail.

The male lead dotes on the female lead.

Romance Where Both Leads Have Distinct, Independent Personalities and Get Together Naturally

Both leads are adults with distinct personalities and their own interests and goals. They come together and learn to rely on each other. Ideally, the story should be set in real life, with most of the plot taking place during university or later.