The Devil of Konoha: Starting as a Medical Ninja

Having inexplicably arrived in the ninja world, Hiroji aspires to become a medical ninja, starting as a trainee at Konoha Hospital and gradually working his way up to become a great medical ninja surpassing the Fifth Hokage, Tsunade.
But is that really the case?
How can it be!
What do you do when you have a captain or teammates you don't like? Of course, you send them to meet the Sage of Six Paths.
In the ninja world, without the ability to directly avoid the Infinite Tsukuyomi, it seems that no matter how strong you become, you can't escape Black Zetsu's conspiracy.
To avoid being affected by the Infinite Tsukuyomi, one needs the Rinnegan, which transcends the Infinite Tsukuyomi.
Whether it's acquiring or awakening the Rinnegan, medical ninjutsu is indispensable.
And that's why Hongzhi acted like a nice guy at Konoha Hospital!