Shinji Kitano

Shinji Kitano is a Japanese survivor who is hiding in a bookstore in Wonderland Plaza along with his friend Yuu Tanaka. He is noted as being one of the best shots in the game, despite crying occasionally.

Multitasking
After you kill Adam the Clown, head towards Shinji and his friend in the nearby bookstore. Read them the Japanese Conversation book and get them to follow you. Then go back to where Adam died and rescue Greg Simpson from the roller coaster and he will show you a shortcut to Paradise Plaza. After all three are in your party and you are back in Paradise Plaza, just get them back to the Security Room. It also wouldn't be a bad idea to equip them with weapons, such as handguns, which can be easily obtained from the 4 or 5 zombie cops that roam outside the bookstore the tourists reside in.