Avici Banquet, Holding Nothing Back

Yu and Ubiji stood face-to-face on the open plain.

Ubiji said, "My disciple, next, I will explain several of the Ōtsutsuki's supreme techniques. First is the Byakugan's most advanced ability: 'inscription.'"

Yu asked, "Inscription... is it different from the Sharingan's copying?"

Ubiji said, "Yes, as different as heaven and earth. The Byakugan can inscribe certain unique techniques into the eyes, allowing them to be used as ocular jutsu."

"An inscribed Byakugan will display patterns similar to those of a Mangekyō Sharingan. If you encounter one in the future, be especially careful. Each Byakugan can only be inscribed once, so the techniques chosen are usually the wielder's ultimate trump cards. One careless mistake, and even an Ōtsutsuki far weaker than you could inflict a devastating loss—or kill you!"

(In the Boruto manga, after Isshiki reincarnates, his right eye takes on a spoke-like pattern and can use the secret technique 'Sukunahikona.' I can't be bothered to figure out what kind of eye that is, but I reckon plenty of similar eyes will appear later, so I'm simply using this setting to unify them. Fucking hell, Boruto, you do nothing but make more work for me.)

"Though I was born without the Byakugan, I know the method of inscription. I will teach it to you now. In the future, you can choose a suitable time to inscribe your own Byakugan..."

Yu murmured, "'Custom-made' ocular jutsu? That sounds very tempting."

After teaching Yu how to inscribe the Byakugan, Ubiji continued his lesson.

"Next is Taijutsu. In combat, Ōtsutsuki Taijutsu complements the Byakugan, primarily through Gentle Fist and chakra-point strikes. Since I have no Byakugan, I am not proficient in either. But once you return, you can ask Yushiki for guidance..."

"There is also the Divine Void Palm Art, which emphasizes long-range attacks and wide-area