Yaoi

When Alex opened his eyes in an ancient forest, he thought he'd wandered into the wrong woods after pulling an all-nighter. Then a cat-shaped “system” appeared to deliver the bad news: he was dead in his world, accidentally transported to a beast world, and—oh yeah—his body had been reprogrammed as a rare male omega.
    Now he's navigating treacherous territories, collecting seven divine stones, and trying not to get kidnapped or killed by territorial wolf lords or jealous saintesses. His only allies? A possessive serpent lord who marked him during his first heat, an exiled white lion who defected from his tribe to stay by his side, and a mer-prince who fell for him at first rescue.
    A growing harem of dangerous admirers who keep saying “ want to be your mate” or “ wait for you.” And surrounded by all that a very confused human who just wanted to pass his biology exam.
    Somewhere between surviving dragon chases, negotiating with bear chiefs, and explaining to his toddlers why they can't eat the furniture, Alex realizes that “home” isn't the world he left behind—it's the impossible family he's built along the way.
    A wholesome (18+) story of accidental isekai, unexpected mpreg, and discovering that sometimes the best things in life come from the universe's biggest mistakes.