Light Novel 29 and JK ~ Shachiku no Iyashi JK ~ (3) GA Bunko

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

「's younger sister is very cute!
」's younger sister is a 29-year-old company animal, Eiji Yaiba. 「's younger sister of, 」, who was witnessed by her younger brother Watarase, was a prostitute. She was a JK who was having a relationship with her!
Yaiba is the type of yaiba hanakoi to the company's amateur baseball team as a younger sister, but her ex-girlfriend and younger sister (Makoto) also came!
And then New Year. Yaiba returns home and attends the reunion. The purpose is to meet old friends. Although it is supposed to be the first reunion in 11 years, the encounter of Hanakoi with her ex-girlfriend, Saki, leads to a strange direction.
The boyhood of Yaiba was told. Saki and her close friends ran through exciting adventures and bittersweet frustrations. What will this reunion bring to Yaiba and Hanakoi?
"Forbidden Year Difference" The 3 rd installment of Love Rice!