The sister-in-law is not able to refuse my child species ~ (related products of this title)

“Risa” is a neighbor, a woman of the same age and a childhood friend from old times.
Naturally, the Takeuchi brothers were fond of her.

Eventually, time passes and “Risa” marries his older brother “Seiichi”.
"Ryuji" was ostensibly happy, but he had a sense of inferiority and anger toward his older brother.

One day my grandson was expected from both families and received a consultation from “Risa” ......
I was told that I could not have a child because of the problem of my older brother “Seiichi”.
The perfect man's big brother has never experienced any setbacks before.
If I had experienced the first setback in my life at this age, there was a possibility that I could not recover.

"Ryuji“ came up with the idea and proposed to ”Risa".

"I'll conceive my sister-in-law instead of my brother"

ご近所さんである“理沙”は、同年代の女性で昔からの幼馴染。
当然のごとく竹内兄弟は、彼女に好意を抱いていた。

やがて時が経ち“理沙”は、兄“征一”と結婚。
“隆二”は、表面的に喜んでいたものの、兄に対する劣等感と鬱憤をため込んでいた。

両家から孫も期待されたそんなある日“理沙”から相談を受ける……。
兄“征一”の問題で子供が出来ない事を聞かされる。
完璧人間の兄貴は今まで挫折を経験したことがない。
この年齢で人生初めての挫折を味わったら、立ち直れない可能性だってあった。

そこで“隆二”は、思いつき“理沙”に提案する。

「俺が兄貴の代わりに義姉さんを孕ませてあげる」