Boys' Love Novels Brother's boyfriend's brother DARIA BUNKO

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

Natsuha is a university student who helps a tea shop run by her older brother, Fuyuki.
One day, while Fuyuki is away, an elite man comes.
He is Takashi, the older brother of Fuyuki's same-sex lover.
Natsuha is strongly opposed to Takashi's high-handed attitude of pressuring him to part with his younger brother.
I would like to talk with Takashi because I wanted his older brother to be allowed to have a relationship with him, but unexpectedly I ended up staying in his room?
I love the love of years between an arrogant and clumsy adult and a pure university student.