In The Name Of Mermaid Princess (Manga) Vol 02

Mio and Yuri flee her father's kingdom to explore the world, making new friends and possible enemies along the way. Mio learns about the other magical abilities and begins to use her magic to help others. But when Yuri is threatened, she loses control of her power over water! Is it true that mermaids are a menace to society after all...? Viz Media Llc
(W) Yoshino Fumikawa (A) Miya Tashiro