Love heaven was an otome game that shut down in 2018 centered around historical figures. They have had multiple collabs with bsd, and this site is meant to archive any images, promotional material, and assets from the collab.
If you find anything not included here, please let me know, as well as if you know anyone who had previously played the game and still has their save data on their phone and is willing to share.
Im making these transparent later :P