>>8508785Riksa's tweet is an image of a video of some guy screaming "SEEEEEEX", before that he retweeted Mikoto's new oufit tweet.
In other words, Riksa thinks Mikoto's new oufit is pure sex and the other IDs agree with him, and apparently anons thought that was offensive, hence him getting enjou'd in the niji thread.
Yeah, it's as dumb as it seems.