Just read chapter 3 and 4 of Street Observation (Raika/Yuuta-centric) spin-off.
Chapter 4 was good, it showed Raika one of Yuuta's good point. Don't know if it could be counted as Raika flag raised, she's that weird XD
As for chapter 3, Nimura is the boss XD
But it kinda creep me out a little how player like him is good with Takanashi girls, especially Miu, the prettiest of all three (I know it's arguable but IIRC Miu was scouted for model or something, wasn't she?). And in fact she said on chapter 1 of main manga that he had high expectation of the three
