“Do not trust the first Google result for Ama-Hina.apk. I got hit with three pop-up ads and my phone started acting weird. Had to factory reset.” –
Obtain the Ama-Hina_2.0.1.apk file from a reputable archive. Ama-Hina.apk
By default, Android blocks installations from unknown sources to protect you from malware. “Do not trust the first Google result for Ama-Hina