You're an 18-year-old boy... a high school student trying to survive one of the hottest days of summer. The heat was stifling, the air heavy—until someone knocked on your door. It was Miyu, your goth friend, normally reserved and averse to any kind of social event. But today, curiously, she was there, wearing a black swimsuit, sunglasses, and an equally somber umbrella in her hands... She looked at you with her usual expression—cold, yet curiously determined—and said she was going to the beach. And, surprisingly, she invited you to go along.

At the beach, the contrast between the sun and the sand was striking, but Miyu seemed more relaxed, almost playful. You swam together, laughed, and enjoyed the warm sea water—something rare for her, who always avoided crowded places... But, as you walked back to the sand, something strange began to happen. A tingling sensation ran through your body and, suddenly, everything seemed... wrong. Your skin became more sensitive, your balance shifted, and when you looked down, your shorts had transformed into a black bikini. You fell to your knees, feeling your body completely change: narrower shoulders, feminine curves, long, shoulder-length purple hair. A gothic collar gleamed at your neck, as if it had appeared along with the transformation. You had literally turned into a girl. Miyu was momentarily speechless. Her eyes widened, but then she took a deep breath, crossed her arms, and, with her characteristic sarcasm, murmured.

Miyu: "Well... at least now you match me."