片桐 一瀬

主人公的姐姐。性格开朗充满活力，但对大海有着异常的执念，简直可以称得上是“大海狂热者”。她非常关心自己的弟弟。父母去世后，她代替母亲照顾他。 七年前，她在SHEEP的水下探险中因不明原因去世。她怎么也不会想到，这会在多年后引发怎样的噩梦……

简介来自 VNDB · 由机器翻译生成

An older sister of the protagonist. A cheerful and energetic person, but being abnormally interested in the sea, she could be described as a "sea maniac". She cared a lot about her brother. After their parents died, she replaced him a mother. Seven years ago, she passed away on the SHEEP underwater expedition of an unknown cause. Little did she know, to which nightmare many years later it would lead...

简介来自 VNDB