Ai o Ataeru KemonotachiBeasts Giving Love; 愛を与える獣達

A 40 year old doctor living in Japan is suddenly transported to another world. And as a bonus, he's regained his youth! He almost loses all hope after being sold into slavery and experiencing the worst this world has to offer when, suddenly, he's saved by two handsome beastmen!? A story of tender love in another world!