Oc X Bowsette's Adventure Arc Story

A retired former Soldier named Eadwulf Erhard, who fought in the war after years of serving his time in the line of duty, now comes home to see his parents and his friends and lives in a peaceful quiet life for a while. until something strange happens. The next day at night, in the dark alley he finds a mysterious-looking green pipe tunnel that leads to nowhere, he goes over until he accidentally falls inside the mysterious green tunnel, which transports him to an unknown fantasy world.