Strobe Edge, Vol. 9 (Strobe Edge, #9) by Io Sakisaka
TIL Sakisaka Io's Strobe Edge, Ao Haru Ride, and Omoi, Omoware, Furi, Furare are called her "youth trilogy" and she created collab art for them :) I loved all three series and
Strobe Edge (2015) - IMDb
Kiss, strobe edge and couple anime #1246593 on animesher.com