It is a Japanese-style BGM of Koto, which seems to be played in hot spring inns and baths.
The warm ambient tones will relax your body, mind, and others.
Points I paid attention to when composing
- Deep reverb to create the wet atmosphere of a hot spring and the space of a bathroom
- Simple melody that is not tiring to listen to
- Chords that convey a sense of gentleness