熱斗の通う学校に特別講師としてやってきた日暮闇太郎。ところが、レアチップマニアの日暮は、やいとの持つレアチップを目当てに、やいとたちを教室に閉じ込めて自分のナビ、ナンバーマンとバトルさせ、チップを奪おうとする。教室外にいる熱斗は、教室にかけられたロックを解き、無事やいとたちを助け出せるのか・・・。
Higure Yamitaro, a guest speaker at Netto's school, is one major chip otaku. But the nerd has a bigger secret... he's eyeballing Yaito's expensive, rare chips, and when he gets the chance... he locks everyone (except Netto) in a classroom! He forces Glyde to do combat with his Numberman, or else he'll delete the school network's data! Netto sends Rockman to save Glyde, but he's blocked by a polyvirus barrier. Rockman and Roll work together to crack the barrier's passwords and rescue Glyde! In the end, Higure gives up his evil ways. English version title - Count to Three!
