Shaira Diaz and EA Guzman do the love lock in South Korea's N Seoul Tower

Shaira Diaz and EA Guzman just sealed their relationship with a love lock in South Korea!

On Instagram, the "Unang Hirit" mainstay host shared photos of their trip to N Seoul Tower. She also gave a peek at the padlock they used for the love lock activity, which was a green heart-shaped lock with the words "Babas Habang buhay" written on it.

"Love locked," Shaira simply wrote in the caption with a finger heart emoji.

The longtime couple have been in Korea since late last month to spend quality time together. They recently visited Myeongdong Street, a tourist hotspot in South Korea.

In February, they celebrated their 10th anniversary . To mark the occasion, EA posted a dreamy photo of them.

During Shaira's birthday in May, EA surprised her with a Jungkook standee .

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—Hermes Tunac/JCB, GMA Integrated News