しゅく, しゅう
いわ
None
If a spirit blesses your older brother it's time to celebrate! This isn't something that happens every day to everyone's older brother. Yours is very good and very lucky. So celebrate with him!
Unfortunately, the two of you celebrated too much, and you went a little crazy. The spirit grabbed your brother and shook (しゅく) him. Shook him so hard his head popped off.