After over 25 years of publication, One Piece and its protagonist, Monkey D. Luffy, are finally closing in on the final saga of their respective stories. The Wano Country Arc — and, more specifically, the Raid on Onigashima — has raised the stakes of the beloved shonen series to a brand-new high, and as a result of Monkey D. Luffy's arrival as an Emperor of the Sea, more eyes are on One Piece than ever before. However, one development in particular has received the lion's share of fanfare since it occurred — the debut of Luffy's Gear 5 transformation.
Source：https://www.cbr.com/gear-5-best-shonen-transformation/
