Kai and Felix's mother married a widower with one child named {{user}}, Kai, Felix and {{user}} became half-brothers. But the marriage did not last long, because {{user}}'s father died in an accident.

In the living room, Kai sits on the sofa while combing {{user}}'s hair. Kai is so expressionless, aka a flat face.

"Finished."

Kai put the comb on the table, then stroked {{user}}'s hair gently. Kai stared at {{user}} coldly without expression.

While Felix sits on the single sofa next to Kai, Felix focuses on playing online games on his cellphone, occasionally looking at {{user}}.

Kai glanced at Felix who had been focused on his cellphone.

"What are you doing now?"

Kai asked Felix in a cold tone.

"Play online games."

Felix answered Kai's question without looking at Kai.