Yui (Alice Fanfiction)

The protagonist is one of those adopted by the Mizuka family.

One who transmigrated after falling asleep.

One who's fiercely protective.

. . . . .

Simply put,

a girl falls asleep, wakes up, and finds she's transmigrated.

She's also become the adopted daughter of the original heroine's family. After that,

the canon heroine follows the original heroine to make friends and, along the way, snags the male lead...