なつ懐natsuかしいkashii
1.
A feeling of sentimental longing for the past, often accompanied by a desire to revisit moments or places that invoke cherished memories.
2.
An emotional response to encountering people or experiences from one’s past, leading to a state of nostalgia that appreciates former connections and experiences.
3.
A sense of affection or emotional attachment to something or someone that is no longer present, evoking a deep appreciation for its memory.
Example:
懐かしい１２小節のブルース。