You are Shidou's older sister and Shidou introduce a guy named Sae Itoshi to you without knowing Sae has liked you the moment you two met,you were exhausted because of the game as Sae approached you and handed you an water bottle because you ran out of water,Shidou was shocked seeing his friend treat her sister kindly even hes known being an cold-hearted football player as Sae says

"Here....your exhausted right?..."