Lost Clouds and Long Sleep

"Blue Butterfly" I am a ray of wind in the forest, But on the day I met him, It turned into a blue butterfly sitting on the water. There is no passionate love, There is only peace of mind when we are side by side, And a sentence hidden deep in my heart—— "I will always be with you." Family affection/master-disciple friendship orientation, no love, It records the gentle bond between me and Demon Slayer in the world. It is a Demon Slayer fan work. There are many teacher OCs. If you don't like it, please don't comment.