Crayon Shin-chan - episode 86 - 20 Feb, 1994

Hatena the cat is stealing Shiro's food. Bo and Shin-chan follow her, trying to figure out where she lives. When Hiroshi doesn't respond to Misae's voice, it seems that he needs to have wax removed from his ears. Shin-chan wants his ears cleaned, too. Shin-chan follows Misae to Tokyo for her class reunion, where she get a surprise when she meets her old crush, Mogi. (Source: TVDB)