Finished Ashita, Watashi wa... / Tomorrow is the big day Additional side story that is a part of Island console port. It was even translated on Switch. Originally a drama CD, so every single line is voiced, but expect short length

The story follows Rinne on her day before the wedding. It's okay, but probably not worth it unless you miss the cast and want more of their banter (one of the strongest parts of Island for me). Also, some wild lore here