Welcome to Ushimitsudoki Aquarium (丑三ッ時水族館へいらっしゃい, Ushimitsudoki Suizokukan He Irasshai) is the second volume of the Oumagadoki Zoo manga.

Cover and Volume IllustrationEdit



An orca named Sakamata appears at the zoo asking if he could speak with Shiina, after the conversation they were been disagreeing with him which he uses violent and captured Igarashi. Shiina is with anger to the Ushimitsudoki Aquarium to rescue him. In the Aquarium they meet Isana the director of the zoo. While being separated by Isana's attack Hana then knows more about the Aquarium and the horrible director.