My Husband, the Secret Guard

In the Great Liang Dynasty, science transmigrators don't survive long. Clara Sterling, a humanities student, transmigrates into an illiterate empress. She plays dumb to survive. The mute secret guard by her side is the Emperor in disguise. The Noble Consort is a science transmigrator plotting rebellion with gunpowder. When the Noble Consort tries to blow up the palace, the Emperor reveals he replaced her gunpowder with duds. Clara Sterling realizes many modern people are hidden in this palace.