Mushoku Tensei: Jobless Reincarnation (Manga) Vol. 18

A MAGIC BETWEEN WORLDS Rudeus is enjoying every moment of his newlywed life with his beloved wife Sylphie.
However, there is one other person at the University who remembers life on Earth– Nanahoshi. While Rudeus has much to love in his new world, Nanahoshi desperately wants to go back home. She’s designed a huge magic circle meant to bridge the gap between worlds, but when the experiment goes wrong, it creates a dire crisis of confidence that only Rudeus can set to rights.
Series Overview: An unemployed otaku has just reached the lowest point in his life.
He wants nothing more than the ability to start over, but just as he thinks it may be possible…he gets hit by a truck and dies! Shockingly, he finds himself reborn into an infant’s body in a strange new world of swords and magic. His identity now is Rudeus Greyrat, yet he still retains the memories of his previous life. Reborn into a new family, Rudeus makes use of his past experiences to forge ahead in this fantasy world as a true prodigy, gifted with maturity beyond his years and a natural born talent for magic.
With swords instead of chopsticks, and spell books instead of the internet, can Rudeus redeem himself in this wondrous yet dangerous land?