sea route

海辺: seashore

将海: a male given name

入海: bay; inlet; gulf; creek

公益事業: public work

a Japanese giant salamander

暗黒時代: a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages

a historical period where social disorder is so great due to war, disease, political disorder etc. that there is little or no cultural development; Dark Ages

dark matter

佳南, 佳波, 佳浪, 光波, 加波, 可南, 可実, 叶光: a female given name / 叶実, 叶心, 叶望, 叶未, 叶美, 哉実, 哉海, 哉美: a female given name / 圭洋, 夏南, 夏波, 奏名, 奏実, 奏弓, 奏弥, 奏心: a female given name / 奏未: a female given name