It is about boy who ranaway from home to another island because he is gay and reject the marriage. Then he meet another boy in the island and fell in love by looking at the boy who alway see the ocean
http://www.mangago.zone/read-manga/umibe_no_etranger/and it's sequel http://www.mangago.zone/read-manga/harukaze_no_tranger/
It is about boy who ranaway from home to another island because he is gay and reject the marriage. Then he meet another boy in the island and fell in love by looking at the boy who alway see the ocean