I Was Cheated on by My Girlfriend but My Devilish Junior Now Yearns for Me

Story:

Christmas time. Hasegawa Yta was left single after his relationship ended last month due to his girlfriend's infidelity. And Christmas was just a few days away! Following a routine talk with his female friend Mino Ayaka, Yta encountered a stunning woman wearing a Santa suit—in a lane crowded with couples no less! Shinohara Mayu was her name. Will Yta receive a Christmas present from this visit with Shinohara?