- There was one time Imu regret having gainrd immortality
- After he lost the war to Joyboy there broke an a huge war among D clans, Joyboy was against the idea of executing Mu while the Marshal clan was strongly of the idea to not only executive him but torture him beforehand
- While during the war some of those Marshal clans went ahead and used the technique to carve poneglyph writings... but on Imu's body, he couldn't get killed, but felt intense pain for the next 5 years aftet that
- In his mind the world had to start from zero in order to prevent any of such fatalities from happening to him
- He tells that to the Gorosei, they blonde one asks he will go ahead and chase Sabo down the redline, Imu says he didn't give the order yet, stay put.