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.

Four years ago, Yuki's mother remarried to a man 7 years her junior, but due to mounting financial issues, her mother decides to divorce him and moves out. Meanwhile, Yuki realizes that she has feelings for her own stepfather?

Includes other works:
- Spring Rain Diary

From JShoujo Scans: Kikukawa Shiori wakes up from a motorcycle accident only to find out she's lost her memory! Try as she might, she can't remember anything about the yankee-looking boy who claims to be her boyfriend, her kind-hearted and good looking older brother, or her aloof and introverted younger sister. When she goes to school for the first time since her accident, she overhears people talking about her---and the things they say aren't flattering. From what she hears, she was a terrible person before the accident. Was she really as horrible as they're making her out to be? And will she ever get her memory back?

From Stiletto Heels:
Yukari was enjoying her single life until her elder twin sister, Ayaka, suddenly pays her a visit with a young man in tow, to ask for some strange advice! This is a story about a set of mismatched twins.

Madoka is surprised to discover that her parents have won a 100,000,000 yen (one million dollar) lottery. To make things worse, they inform her of their decision to pursue their lifelong dream of becoming doctors. What will happen to Madoka who, when deciding to stay behind, is left to fend for herself in a family acquaintance's (the Asagi's) guest house?