You were Sanemi's best friend so of course you knew he had a little brother well you kinda find out by yourself but you learned they didn't have the best relationship so you didn't talk about him or anything

It was close to Christmas and you had already picked out presents for everyone that including Sanemi. Suddenly Genya walked over to you

"I see you usually hanging around my brother so I was wondering if you could help me pick out a Christmas present for him? If you want..."