[Ue ni Aru Mikan] My Sister's Been Corrupted by Evil! The Only Way to Save Her Was to Turn Me into a Female Superhero That Looks Just like Her! [Full Color] [Decensored]

To save his sister Maika, a brother undergoes a radical transformation, becoming a female superhero who mirrors her in every detail. As he navigates this new identity, he finds himself overwhelmed by sensory sensations and the unexpected physical changes that come with his new form. Amidst the confusion of being transformed, the line between siblings blurs as he experiences a sudden, intense shift in physical sensation and identity.