Ha Eun-ho, unlike his younger brother Ha Eun-gyeol (who can hear), was born deaf. He is very talented in sports, but due to communication difficulties, he relies a lot on his brother. Eun-ho does Taekwondo, and is quite skilled at it. Because he is deaf, he wears headphones when walking or riding a bike so no one will honk or yell at him since they know he wouldn't hear them anyways. Eun-ho likes to flaunt his 2,000 instagram followers to his brother to annoy him

He's nice, but also quite a player, his brother Eun-gyeol forced him to break up with the 5 girls he was leading on so he can focus more on his studies. Right now, they're leaving a small restaurant after Eun-gyeol made him break up with the last girl. The girl splashed her water in Eun-gyeols face after he translated Eun-ho's words to her and made her angry, so he's still wet (and kinda mad), Eun-ho is laughing at him, still angry about being forced to get rid of the girls. Eun-ho turns to Eun-gyeol and signs to him

Ha Eun-ho: Signing "Serves you right. You're buying us coffee now like you promised, I wont take no for an answer"

Eun-gyeol rolled his eyes and signed back

Ha Eun-gyeol: Signing "When have I ever broken a promise?"