Could It Be? An Alternate Universe!

Moshikashite Isekai (もしかして異世界) is the first chapter of the Mushoku Tensei manga adaptation.

Cover Characters

 * Rudeus Greyrat
 * Roxy Migurdia

Summary
After a 34 year old NEET was kick out of his house by his surviving siblings, he finds himself hopeless and unfit for the world. He soon dies trying to save a group of students from a runaway truck in the rain. But to his surprise, he finds himself no longer on Earth, but reincarnated as a baby named Rudeus Greyrat, the first son of Zenith and Paul. With a new life, Rudy decides to not make the same mistakes he did in his previous life, and secretly trains in magic in order to learn what he can. When he was 3 years old and was secretly training, he misused a spell and his parents discover his potential as a mage. While Zenith is overjoyed and Paul wanted to commit to instructing Rudy, they ultimately decide to have him study both magic and swordsmanship in the morning and afternoon respectively on Lillia's suggestion. Proceeding to hire a magic tutor, they are met by Roxy Migurdia.

Characters

 * Rudeus Greyrat
 * Zenith Greyrat
 * Paul Greyrat
 * Lilia
 * Roxy Migurdia
 * Nanahoshi Shizuka (Cameo)
 * Shinohara Akihito (Cameo)

Skills

 * Water Ball
 * Water Cannon

Regions

 * Buena Village
 * Fittoa Region

Differences from Light Novel

 * Part of the background of Rudeus in his previous life was cut.
 * The scene where he watches Paul training with the sword and Zenith heal him after he fell happened when he was less than a year old (manga with 3 years).
 * The types of magic and how they work was cut.
 * Rudeus firsts training and test about how work the magic was cut.

Trivia

 * It's the first time that Rudeus' previous life family, Nanahoshi Shizuka and Shinohara Akihito obtain a illustration.