They said about the joint thing earlier in son of ogre that it worked mainly with imagination support so it makes a bit more sense (but yeah it's baki universe anyways :P)
At first I thought that it was gonna be another excuse for sexy teacher situation but my! This manga is really well written and intelligent. Also the drawing is subtle. A really good discovery!
Thank you so much for the French vols man, can't wait till you share those other volumes and don't worry your translations are definitely more than okay 😉