Kyodai Gokko (Dear plus Bunko) [Light Novel]

[Machine Translation] Rito, a young twenty-seven-year-old associate professor, befriends Rurikawa, a prominent economist who has been invited to the university where he works. Rurikawa is his former brother-in-law, whom he has not seen in 18 years, and his first love. He had approached Rurigawa to part ways with his first love, which had been smoldering and unforgettable. However, when Rurigawa learns his secret, they unexpectedly sleep together and fall in love all over again. However, Rito is not Rurigawa's love interest. Rito's unfulfilled second love for his ex-brother-in-law...? A heart-throbbing and erotic love story of an ex-brother-in-law x ex-brother-in-law + doggy.

二十七歳の若き准教授・理人は、勤務先の大学に招聘された著名な経済学者の瑠璃川と親しくなった。瑠璃川は十八年ぶりに再会したかつての義兄で、初恋相手。いつまでも燻り続け、忘れられない初恋と決別するために近づいたはずだった。なのに瑠璃川の秘密を知ったことで思いがけず添い寝をする仲となり、再び恋が芽生えてしまう。けれど、理人は瑠璃川の恋愛対象外。元義兄に抱いた叶わぬ二度目の恋に、理人は...?元義兄×元義弟+ワンコ、胸キュン&エロスな恋物語。