A college student, Akira Toono, was playing the ordinary MMO 'Retro Fantasia Chronicle' with his usual partner, an old man, when he accidentally used a rare drop item, causing him to be transported to the world of Retro Fantasia Chronicle. Despite the situation, he thought he could get through it with his partner, the old man, but... the old man wasn't an old man!? This novel has been published by Earth Star Novels. The fourth volume was released on February 15th. There has been no digest version due to the book publication.