Ike, Reimu, Shu and Selen tried the Highest Note of Leia [Nijisanji EN]

For some reason, when I am editing this video it hurts my ears when they keep doing the note. It was so high, how can Ike and Shu do it? I expect Reimu can do it since she's a girl and I heard her on her karaoke stream but the boys?

The song they are talking about:
   • Leia - Megurine Luka 「English Sub」  

SOURCE
【GUERILLA STREAM】Karaoke afterparty!【NIJISANJI EN | Ike Eveland】
   • 【GUERILLA STREAM】Karaoke afterparty!【...  

NIJISANJI EN
https://www.youtube.com/channel/UC-JS...

IKE EVELAND
Youtube: https://www.youtube.com/channel/UC4yN...
Twitter:   / ike_eveland  

SHU YAMINO
Youtube:    / @shuyamino  
Twitter:   / shu_yamino  

REIMU ENDOU
Youtube:    / @reimuendou  
Twitter:   / reimuendou  

SELEN TATSUKI
Youtube:    / @selentatsuki  
Twitter:   / selen_tatsuki  

THANK YOU FOR WATCHING!

#ikeeveland #SliceofIke #vtuber #nijisanji_EN