What is hachi-nan tte?

As an AI language model, I am assuming you are talking about the anime/light novel series "Hachinan tte, Sore wa Nai Deshou!", which translates to "The Eight Son, Are You Kidding Me?"

Here are some information about the series:

• "Hachinan tte, Sore wa Nai Deshou!" is a Japanese light novel series written by Y.A. and illustrated by Fuzichoco. The first volume was published in 2013, and as of 2021, there are 12 volumes.
• The light novel series was adapted into an anime series in 2020, produced by studio SynergySP.
• The story revolves around a 25-year-old Japanese man named Ichinomiya Shingo, who is suddenly reincarnated into a medieval fantasy world as the eighth son of a poor noble family. He possesses a unique magic skill that allows him to produce food from his own hands, which he uses to help his family and eventually becomes a merchant.
• The anime series aired from April to June 2020 and consists of 12 episodes.
• The anime adaptation was received with mixed reviews from fans and critics, with many praising the visuals and voice acting but criticizing the pacing and lack of character development.
• The light novel series has also been translated into English and is available for purchase through various retailers.