How do you think gained Mitsuki SM?

[Belserion]

He was still a kid and his adult Version was surprised too.

 

[ImmortalRegis]

lol wtf is this HAHAHAHAHAHAHAH

 

[Sagebee]

He was still a kid and his adult Version was surprised too.

It's genetic like kabutos

 

[Rikudo no Sasuke]

orochimaru said that mitsuki is "genetically perfect"
so, he is a mixture of several strongest bloodlines :

- white snake
- uchiha DNA
- hashirama DNA
- karin DNA
- juugo DNA
- suigetsu DNA
- kimimaru DNA
- byakugan DNA