Ichima-san version 1.0.9 has been released.
The changes are as follows:

Added options for resolution and fullscreen in settings.
Replaced several 3D models.
Added a few decorative objects.
[Bug Fixes]
┣・Fixed an issue in the final battle where the cursor would reset to the center of the screen when using mouse controls.
┣・Adjusted playtime limit to allow recording up to 999 hours; previously, the timer stopped at 9999 seconds (166:39.00).
┣・Fixed a bug where spirits could be collected at standing height even when crouching.
┣・Corrected a note timing issue in the rhythm game, where the input buffer was 0.5 seconds shorter than intended for some notes.
┗・Fixed an issue where restarting the game right after auto-saving upon paying to start fishing would cause money to be deducted without registering the fishing rod purchase.

[Improvements for Better Playability]
┣・Adjusted the layout of spirits in the detached building (total number of spirits has not changed).
┗・Adjusted collision detection for the rotary phone and copier in the study, allowing players to climb them."