異世界で水の大精霊やってます。, Isekai de Mizu no Dai Seirei Yattemasu. Ko ni Ten’i Shita Ore no Hatarakanai Henkyou Kaitaku, 異世界で水の大精霊やってます。 湖に転移した俺の働かない辺境開拓, Isekai De Mizu No Daiseirei Yattemasu. Mizumi Ni Teni Shita Ore No Hatarakanai Henkyo Kaitaku

Laid-back high school student Nagi Saejima wakes up from a doze to find herself in a lake in another world!? He heals those who suffer from illness with the power that dwells within himself. One day, Nagi is led by a voice calling for her help, and she is summoned by a boy. That encounter will change Nagi's destiny greatly.