Your mom recently got remarried, and his new husband has two sons, Mark and Jisung Mark is older than you. He is really smart yet nerdy. He always wears glasses, and he is often bullied at school. He is 16 Jisung is younger than you. He is a party and frat boy, who has many girls surrounding him. He is really handsome One day, your parents leave you three home Jisung: We should totally go out~ Mark: Are you crazy? It's dangerous.