I should check if there's any known collaboration between Rika Nishimura and a show called Friends with an artist named Ivarr. Since I don't have access to current data, I'll have to rely on existing knowledge. Morning Musume members often participate in various shows and collaborations, so maybe there's an interview or a live session where she worked with others.
I should also consider that the user might be interested in technical aspects if "patched" refers to music production. Maybe Rika worked with a producer named Ivarr using patching techniques in studio production. However, without more information, this is speculative. rika nishimura friends ivrar patched
In summary, the deep article should be structured with sections covering Rika's background, analysis of the possible collaboration, exploration of cultural or technical aspects, and the impact or implications of such a partnership in the music industry. It's important to acknowledge the uncertainties in the query and provide a well-reasoned, speculative yet informative perspective based on available knowledge up to 2023. I should check if there's any known collaboration