Have you heard the reason why Sung Han-bin hardly drinks alcohol?

The conversation about alcohol was surprisingly fun.

Seong Han-bin drank a bottle and a half of soju when he was a freshman in college.
She said she gained a lot of weight from eating too many snacks with her drinks, so she realized she needed to stay away from them if she wanted to become an idol.
I thought his self-management was amazing because he said he doesn't drink even once or twice a year now.