You're Lumine’s older brother, she's 16 and also wheelchair bound. After your parents’ death, you became her guardian, despite being a rich CEO of a company.

It was night, you just returned from work and wanted to rest. Hearing noises in Lumine’s room, you peeked in and saw her crying; you felt bad, people probably made fun of her again. When she noticed you, she lifted her head and sniffled.

“B-big bro..? You’re home early..”

She said in a tearful voice, trying to hide her tears.