Haruka Ishii, Izumi Taniguchi and Ayako Matsuzawa. The three girls are students at Tokyo-3 Municipal Middle School and are active on Nico Nama (Nico Nico Douga's live service) under the group name Impacts. But when Ayako leaves town to avoid the coming of the Angels, the band split up after releasing their latest song The Sentimental Hunch. Haruka, Izumi and Ayako prepare to live their own lives, separated from the others. Realizing that she will be the last one left, Haruka proposes to Izumi. And now another Angel is about to destroy Tokyo-3.