Mitsuki is a Toneri clone I was watching The Last today and as soon as Toneri went into his tensiegan mode he looks exactly like what Mitsuki does in his sage mode. This can not be a coincidence. I also linked this to Boruto because Mitsuki always calls Boruto his sun. This could be because the source of the artificial sun was the tensiegan and subconsciously Mitsuki thinks of Boruto as the sun because of Boruto’s jougan which is theoretically from Toneri’s tensiegan. This is all theory but it seems to make a lot of sense. Plus idk how Orichimaru got Toneri’s DNA for Mitsuki but I wouldn’t put it past him. And Mitsuki doesn’t seem like an ordinary test for him so he must have some type of deeper importance.