From The Lemon Teddy Bear:
Tamako, who has lead a sheltered life all her life, wants to attend a university in Tokyo to follow her boyfriend there but is opposed by her grandfather. So she plans a fake engagement with Noriyuki in exchange for her grandfather’s financial support to his family’s shop while both he and she gets to study in Tokyo.
Volume 1 :
Ch.1: Translated. | Ch.2: Translated. | Ch.3: Translated. | Ch.4: Translated