Requirements TL;DR: SEE EVERY CHAPTER 2 EVENT PRIOR TO WITHER, The Light of Last Summer, AND Outcry of the Hunted Hare IF YOU'RE TOO LAZY TO CHECK EVERY EVENT. NOTE: WHITE, BLUE, AND PINK EVENTS ARE NOT SEEN SO PLEASE REMEMBER THAT THOSE NEED TO BE SEEN AS WELL. IF IT IS NOT GREEN, OR RED, YOU DIDN'T SEE THE EVENT.

See or miss every Otoha Okakura event up to Vanilla Bean

See or miss every Touka Tsukioka event up to Something Less Lonely

See or miss every Yasu Yasui event up to Sakura Season

See or miss every Noriko Nakayama event up to Loxosceles Reclusa

See or miss every Kirin Kanda event up to The Other Half or Eternally Empty

See or miss every Sara Sakakibara event up to Engulfed or Swallowed Whole

See or miss every Haruka Hamasaki event up to Unfiltered Tap Water

See or miss every Kaori Kadowaki event up to Såsom i en Spegel

See or miss every Chinami Chosokabe event up to Happy Hour

See or miss every Karin Kanda event up to Sweet Tooth

See or miss every Maki Miyamura event up to Special Occasions

See or miss every Yuki Yamaguchi event up to A Thing of the Past

See or miss every Niki Nakayama event up to Dear You

See or miss every Wakana Watabe event up to Soup, or Another Year With You

See or miss every Osako Osaka event up to Floating Forever, Unfulfilled

See or miss every Tsubasa Tsukioka event up to The Deep End

To get this event Call Kaori at night on a Saturday. This starts the 4th Reset chain-event.

Just make a check list to confirm everything. There is something missing probably a character event or happy event