The end of chapter 38 ("Da Hungah Games"). The chapter itself was a parody of The Hunger Games, but, at the end of the chapter, there was a dedication to the people who died in the Japanese earthquake and tsunami of 2011, because the chapter was posted a year after the quake. Here is the dedication:
"This chapter is dedicated to all of those who have died in the Japanese earthquake, tsunami, and nuclear disaster last year in Sendai. And, to all of those people who still have friends and family missing as a result of this disaster, here's something I'd like to say - Don't give up hope. Luffy, Yuki-Rin, the rest of the Straw Hats and Capricorns, and all the other good guys in One Piece and in One Piece fanfiction have your backs. They will fight for you and their stories of adventure will brighten your day. To my readers in Japan who may have known people that died or went missing in the disaster - I hope this fanfic and One Piece: Parallel Works continue to make you smile. Because, as Namie Amuro said in the 14th opening, we fight together."