2学期初日の朝、羽川翼は通学路で幽霊の少女・八九寺真宵とお喋りする。 その直後、巨大な「虎」の怪異を目撃。同日、自宅が火事で全焼してしまう。
Part 1 of 5. The morning of August 21st. Tsubasa comes across an oddity in the shape of a big white tiger on the first day of the 2nd term. She talks to Hitagi about it, because Koyomi is absent. To make matters worse, her house is on fire in the afternoon of the same day.
