Complex sentence: He was turned into a child just as Kanda because of a potion found during the Head quarter's moving process.past that, lavi is back to his old self and shown coming to the new headquarters for bookman business.
Split into simpler sentences: He was turned into a child just as Kanda because of a potion found during the Head quarter's moving process. Afterwards, Lavi is back to his old self and shown coming to the new headquarters for bookman business.