May 2: 311. Prologue of Road to Ninja
May 9: 312. The Old Man and the Dragon's Eye
May 16: 313. Rain Followed by Snow, With a Chance of Lightning
May 23: 314. Sorrowful Sun Showers
May 30: 315. Lingering Snow
all filler
The manga will be 70-75 chapters ahead of the anime by May’s end.