Tada Shiawasena Isekai Kazoku Seikatsu
Ordinary Happy Family Life in Another World
Publisher: SB Creative
LN: Three volumes (latest one released 2019)
Manga: Yes (currently with two volumes)
Bookwalker link (no LNDB entry)
Araki Susumu, a salaryman who has been working ceaselessly without caring for his family, loses consciousness on his birthday and is reincarnated in another world as "Tidus", the son of a couple named Dee and Tin. Regretting his previous life, Tidus begins to work on the development of his village from an early age to live happily with his family this time. Taking advantage of his father's position as head of the village, he teaches the children around him how to write and creates new special products from the blessings of nature. However, some forces want to take advantage of his success...
"I hope and pray that the ones around me will be happy."
To make his family happy this time, the boy starts his life a second time. This is the story of a young boy who starts his second life to make his family happy.
Small update: The manga is ending.
The LN is still stalled at three volumes since 2019, so it looks like it’s dried up.