After being hit by a truck and dying, a hapless Japanese man is reincarnated into a fantasy-like world with the knowledge and experience from his previous life. He resolves to become successful in his new body.

Rudy recalls his past life and being hit by a truck. He then spends months learning magic with Roxy before leaving home.

While exploring the village, Rudy rescues a green-haired child from a group of bullies. The two practice magic together and become close.

The Greyrat family are overjoyed when Zenith announces her second pregnancy, but the mood turns sour when Lilia reveals that she is also pregnant and Paul is the father.

Rudy arrives in the city of Roa, where he's supposed to spend the next five years tutoring a local lord's daughter. However, his student is more than he bargained for.

Rudy begins as Eris' official tutor, but she doesn't want to learn anything other than magic; Rudy realises non-stop lessons are causing her stress and proposes a day off.