Vento Aureo - Chapter 2 
Gold Experience, Part 2 (
Koichi begins considering the idea that Giorno is the same person that Jotaro had sent him to look for. Just then, the unknown mass in the passenger's seat of the taxi transforms into a frog, which startles Koichi (who doesn't sense it to be the effect of a Stand) and hops away. He sends out ACT1 to search for Giorno or his luggage.
While walking away from the airport, Giorno is confronted by a shady individual wielding a shovel, knowing him to be Leaky-eye Luca. Luca asks Giorno for a "gift of respect", as he points out that the airport is considered his territory to patrol. Giorno refuses, claiming he'd already paid the airport security for protection, before Luca takes what he believes to be Giorno's wallet. He finds it to only be a picture holder, revealing a picture of DIO inside it. Luca then becomes enraged as the same frog from the taxi appears and jumps onto Giorno.
Luca, not listening to Giorno's requests to ignore the innocent creature, hits it with his shovel, but the damage of the shovel is reflected back directly to Luca himself, denting his head and sending him into a coma. Giorno then goes on to explain the significance of the life he creates with his Stand. He reveals a star-shaped birthmark on the back of his left shoulder, as the frog transforms into Koichi's luggage that he promptly and calmly walks away from Luca's body with. Elsewhere, Koichi sadly confirms that he's unable to find neither his luggage nor Giorno.