In last week's Rockman-chan, the Light family's vacation in France came to an end. They met the Silver Mega Man and fought some the beasts from Mega Man 2's European box art. This week's newest chapter sees the return of Dr. Cossack, Kalinka and Proto Man!
Not much else to say than that. You can take a look at this chapter here!
Don't forget to check out the interview with the Rockman-san and Rockman-chan authors here. It's a great read if you're a fan of these manga!