Watch on Soap2day. Tistou is 8 years old, and his father runs a weapons factory that has brought prosperity to the entire town for generations. There's no doubt his son will take over when he grows up—the only problem is that Tistou is taking his time growing up. Too much imagination, an alarming innocence… Until the day he discovers he has a green thumb. Wherever he places his thumbs, plants grow according to his imagination. He then decides to use his power in secret to improve things in his own way…