Poco

Poco  (ポコ) is a minor character introduced in Part I: Phantom Blood. The character is portrayed as an ally of the protagonists.

Personality
Poco is introduced as a mischievous boy who steals the group's supplies. Later, however, especially when Jonathan Joestar is losing against Tarkus, Poco has shown to be brave, willing to risk his life to help the group. He is also shown to worry about his sister, who has been taken captive by Dio Brando.

Phantom Blood
Poco was a coward boy who was always bullied by other kids and was protected by his sister Peggy. When  confronted by her about when he was going to fight back and live on his own Poco answered that he would do this "tomorrow", getting slapped by Peggy soon after. On their way to the Windknights, Jonathan's group encounters Poco, who is introduced as a pickpocket who steals the group's supplies. In reality, he was under Dio's mind control and while he is able to get away from the group quickly, he quickly finds himself under danger from Dio's zombies. Luckily, he is saved by Jonathan, and witnesses the serious situation of the group.

When Jonathan fights a losing battle against Tarkus, Poco finally grows courage, willing to risk his life to open the door to allow Zeppeli and Speedwagon to come to Jonathan's aid, though neither of them are willing to comply with his wishes with regards to the ethical dilemma of risking the life of a child. He them accompanies the group to the fight against Dio, just to save his sister, and is protected by Straights from Page, Jones, Plant, and Bonham for the remaining of the fight. After the battle's end, he last appears with his sister and the other characters on the port to wish Jonathan and Erina Pendleton a good honeymoon