Qianting Zongdongyuan 5: Shiguang Bao He

Synopsis

The small submarine Ali went to the depths of the sea to perform missions and encountered an unprecedented accident. The little shark Meisha refuses to be a submarine king like his father's one-eyed shark, and she dreams of becoming a submarine hero like Ali. The mysterious treasure box she got accidentally changed her father's one-eyed shark back to his childhood appearance. When the treasure box disappeared strangely, a mysterious monster appeared in the underwater playground... 　　 In order to explore the mystery to save the underwater world, the small submarine took the super cute animals on a magical treasure hunt adventure. (translated from douban)