As the spell is said, Ebisu squeezes Kimi's hand one more time before the kanji of his new name burns bright and his body dissolves into light. It goes straight into Sotero's hand, solidifying neatly into carefully tempered metal- and the feelings of a new bond, a shimmering nervousness that's now gotten stronger as the seconds have passed. Ebisu was absolutely right on that "hides his feelings with a smile" part.