Based on a dating simulation game of the same name; Sakuragawa Hitomi is your ordinary heroine...she might just be a bit overweight...100 KG to be exact. Although she was quite beautiful as a child and won many beauty contest, her love for sweets became her downfall and before she knew it, she was a giant blob of flesh. Now she's sent by her father to live with her older brother at a hi-tech apartment that's also home to some rather gorgeous boys...would she be able to loose weight and attract their attentions!?(Taken from Michex RAW)

Boku no Osananajimi is a collection of short stories by Yuuki Fujinari about the romantic tensions between childhood friends.
The six stories included are:
Futari no Tokei
Afuredasu Omoi
Massugu ni Mitsumete
MAJIKURU ROMANSU
Fujun na Oresama, Junna Kare
Fuku Kaichou to Fuuki Iin no Juunan

Chapter 1: Anata no Tame no Houkenshitsu (The Infirmary is for your Sake!)
Chapter 2: Tanoshii Tsuuhan Seikatsu (A Fun Mail-Order Life)
Chapter 3: Tsukushi Jouzu? (Can You Handle This Love?)
Chapter 4: Ani to Otouto no Reijiten to Souiten (The Similarities and Differences Between Older and Younger Brother
Chapter 5: Sagashi Mono (Sought-After Things)
Chapter 6: Shikaeshi Keikaku (Project Revenge)
Chapter 7: Kimi to Boku no Toku Touseki (Your and my Special Seat)
Chapter 8: Boku to Sensei to Megane (Teacher, Glasses, and I)
Chapter 9: Tadashii Megane no Katsuyouhou (The Method of Using the Right Glasses)
Chapter 10: Atogaki (Afterward)