Hachiyama

High schooler Rico is determined to make her grandfather's karate dojo go viral, constantly posting on social media. Just as she's searching for the next trending topic, an alien appears?! A story of an unlikely friendship between an Earthling and a space visitor begins! Source: MangaPlus

In a world where human civilization has collapsed and fishfolk have proliferated, a single human girl has turned up. Posei of the fishfolk, who believes in the legend that consuming a human being grants one authority and power, intends to make a meal of the girl, but…