神竜に丸呑みされたオッサン、生きるために竜肉食べてたらリザードマンになってた (Associated Names)

Danza, an old man who had been participating as a porter in a Class A party, one day was lured by Zairos, the leader of the party, and swallowed whole by a divine dragon. Inside the divine dragon, there was no food, water, or anything else. There was only a thin pink wall… the flesh…