Mob dakedo Oshi ga Ikiterukara Mainichi ga Tanoshii (Light Novel)

The spring I became a second-year high schooler...When I saw the transfer student from the class next door, I suddenly remembered the memories from my past life. In this world that was from a game that I loved from my previous life, I was a nameless mob. But it doesn’t matter even though I’m a mob. That’s because this world has Kurogane Taiga, my favorite and the one I love the most! As long as he’s here, I’m happy! Just by having my favorite exist, I am full of happiness! I carelessly told him my feelings and from there, our strange relationship started.