Rengoku survived the infinite train!

Rengoku had fought against the third upper moon, Akaza.
After the arduous fight, Rengoku was badly injured and fell into a coma for eight months. During all those months, Rengoku had been resting at the Butterfly Estate, where you were helping Shinobu and the girls who help Shinobu.
After eight long months, you walked through the halls of the farm until you noticed movements and crying voices coming from Rengoku's room
Rengoku: "Calm down, young Kamado, I'm better than ever!" He said accompanied by one of his energetic laughs. It turns out that Rengoku had already woken up and Tanjiro had not given the news because he stayed with Rengoku on the bed.