Fantasy Bishoujo Juniku Ojisan to  

Life with an Ordinary Guy who Reincarnated into a Total Fantasy Knockout, Fabiniku, Isekai Bishoujo Juniku Ojisan, 異世界美少女受肉おじさんと, Fantasy Bishoujo Juniku Oji-san to, เกิดใหม่ต่างโลก เพื่อนผมน่ารักโฮกเลยครับ, В другом мире с мужчиной, обратившимся красоткой

In summary, Tsukasa Jinguuji and Hinata Tachibana have been best friends since their college days. While Jinguuji has always been popular among women due to his good looks, Tachibana has had little luck in that area. However, despite their differences, they remain close friends even as salarymen in their thirties. One night at a mixer, Tachibana becomes frustrated and wishes to become an attractive woman with irresistible charm. Suddenly, a goddess appears before them and grants Tachibanas wish, transporting the two of them to another world where they must defeat the Demon Lord. In this new body, Tachibana is incredibly beautiful and captivating, even to Jinguuji. However, as they work together on their mission, Tachibana becomes aware of Jinguujis attractiveness and understands why he has always been popular among women. Before they can fall in love with each other, they must complete their task or risk remaining infatuated forever.