Both involve time travel and death of a character
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- ML stays with the FL at her house at the start
- ML is like a stray cat in a way
- Both dramas has a chilled and cozy vibes
- Innocent and kind FL
- beautiful OSTs

It has similar vibe to 2521

Some of the similarities
* Friend group with 2 couples
* Fun and refreshing vibes
* both are in the past and have a diary like format
* Gentle and kind male lead
* First love
* High School