Why did Yoo Hee Yeol pay for Rainbow Jisook's meal?

On September 10, Jisook uploaded onto her Twitter, "I coincidentally saw Yoo Hee Yeol at a lettuce wrap restaurant~ He gave me warm words of advice, paid for my meal, and left... I'm so energized! With this added energy I'll work even harder~ Thank you!!!!!<3" and thanked Yoo Hee Yeol for her meal.

Netizens who read this commented, "Yoo Hee Yeol is truly the best," "Yoo Hee Yeol has a heart as big as his forehead!" "It's heartwarming to hear Yoo Hee Yeol bought her meal," and "Yoo Hee Yeol is so cool! He's my ideal man."

Yoo Hee Yeol joined the crew for tvN's "SNL Korea," and is leading his own corner called "Weekend Update." He also appeared on the September 7 episode of MBC's "Infinite Challenge Night," and brought laughter to the set with his witty comments.

Rainbow is scheduled to appear at the 'Korea-Canada 50th Anniversary 2K13 Feel Korea' stage at Stanley Park in Vancouver, Canada on September 13 and 14.