Male Leni Loud (Duo-Franchise)

Male Leni Loud is the son of Mr. L., the true main antagonist of the Hospital Arc and the unseen antagonist-turned teteratagonist of the entire duo-franchise.

10th Grade Arc
He debuts in the season finale when he was unconscious in Riverark. The doctor was killed when he comes in contact with M!Leni's body and he escapes from the bed. He then comes after Zachary muttering "Myles Bots". Donning a robe, he heads off to Linden City.

11th Grade Arc
The adolescent then makes his appearance as an egotistical rival to Zachary and he manages to see the error of his ways when Zachary and Leni are pursued by a highly savage rat. M!Leni's redemption is amplified when his dad's true colors are shown and his plan to shatter the Myles Bots is revealed.