Yuki Sakai – Flat × Street Posted on May 9, 2018 by Effraim — 7 Comments ↓ FLAT × STREET from TATSUNARI SAKAI on Vimeo. It’s a busy day here at Flatmattersonline HQ! Amazing production on this new flat/street edit out of Yuki Sakai. Feeling the mix of typography and the visual in this one put together by Tatsunari Sakai. Go watch this!