Watabe Soyo (渡部颯葉) is a former 4th generation member of AKIHABARA Backstage pass, she graduated on August 31, 2013.
- Name: Watabe Soyo (渡部颯葉)
- Birthdate: March 18, 1997
- Height: 168 cm
- Favorite Food: Chocolate based foods, Macaroons
- Favorite Drink: Green tea, Café au lait
- Favorite Idols: Palet's Kimijima Mitsuki, Cheeky Parade's Nagai Hina
- She's currently a second year high school student.
- She likes idol groups. Some of her favorites include ℃-ute and SUPER☆GiRLS.
- Within the current cast, she admires Asakura Yuri and Taiga Hana.
- In a blog post on December 16, 2013 she claims to be in a new group.
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