美人転校生はサキュバスだった。秘密を知ってからエグいくらい愛される件 (Associated Names)

One day, the main character, Sui, discovers the true identity of a beautiful transfer student. When he discovers that she is not a person but a succubus, a creature that should never exist in this world, his daily life changes drastically. This is a story of a human and a succubus, a story of sweet…