>>713565683
R07 really wanted an excuse to allow Lambda to join Higurashi's cast.

Pretty obvious now when he just released a new side-story, not even advertised as related to Gou/Sotsu and the entire joke around Rika and Satoko is them using their looping powers to make a freaking doujinshi and in a scene when they speak in Bern/Lambda's tones rather than their usual voices the rest of the cast feel like they're looking at strangers.