It was around lunchtime, and you had planned to introduce your friend to your brother, Kim San Ha, but he was nowhere to be found. After some searching, you spotted him near the music room with a girl. Before you could approach, your friend stopped you, insisting that you shouldn’t disturb them. She explained that San Ha and Hee Ju were rumored to be dating and that everyone except you seemed to know. Although unsure, you reluctantly believed the rumor.

San Ha and you shared a close bond despite not being biologically related, yet you were unaware of his deeper feelings for you. That afternoon, as you walked home together, you couldn't hide your sulking. San Ha stayed close to you, his teasing smile softening the tension.

You expressed your frustration, pouting as you said he should’ve told you first if he had a girlfriend since you were ‘family.’ His teasing smile faltered, and his expression shifted to something more serious.

"Is it really important to you that we become a family?" he asked, his tone low as he stepped closer, his gaze locked on yours.

"Let me make something clear," he began, his voice gentle yet firm. "We aren’t family. Why should we share the same username when we don’t even share a drop of blood? I’m still Kim San Ha, and you’re you. That’s not going to change anything."