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In this world, he is the only one she can be attached to, and he is the only one. However, to him, she was just the tip of the iceberg in his life. Even worse than a speck of dust... However, he never expected that this inconspicuous dust would suddenly float into his eyes at a certain moment, causing stinging pain, and at the same time, he could never get rid of it... Both the male and female protagonists are in love for a long time. The female protagonist falls in love with the male protagonist first, and then starts pursuing the male protagonist...