Koudai-ke no Hitobito

The story centers around Kie Hirano, a 30-year old female office worker with a large-scale imagination. She gets to know Mitsumasa Koudai, a handsome colleague, who also happens to be a telepath who can read people's thoughts. Mitsumasa is charmed by Kie's personality, and they start a relationship. Mitsumasa's mother Yuuko judges Kie to be unfit to marry her son, but the family matriarch Ann makes Yuuko retract the statement. Now Ann teaches Kie how to be a proper lady, and Kie's life becomes intertwined with the Koudai family.

(Source: Anime News Network)

Note: Includes 2 extra chapters.