A Journey Through Another World: Raising Kids While Adventuring, Vol. 3

After being reincarnated in a fantasy world, former average Japanese youth Takumi Kayano is now living life as an adventurer while caring for the young twins Alan and Elena. In order to experience even more that the world of Etelldia has to offer, Takumi decides to leave the now-familiar town of Shireen and head towards the coast and the towns along it. In the midst of their journey, the trio encounter a mermaid, and before they know it are whisked away to the merpeople settlement! What new adventures lie under the sea?