Detective Conan maintained its grip on Japanese television during the last week of June, pulling in a 7.4% household rating to claim the top spot in the Kanto region's anime rankings. The mystery series aired on NTV on June 27 at 6 p.m., continuing its decades-long reign as one of the most-watched animated programs in Japan.

Classic family-friendly fare dominated the upper rankings. Sazae-san came in second with a 7.1% rating on Fuji TV, while Chibi Maruko-chan followed close behind at 5.2%, cementing these timeslots as reliable audience draws. Both shows air on Sunday evenings, suggesting strong weekend viewership habits among Japanese families.

Newer series still managed respectable numbers despite stiff competition. Ascendance of a Bookworm Part 3: Adopted Daughter of an Archduke pulled a 3.5% rating on NTV's Saturday slot, matching Doraemon's performance. That Time I Got Reincarnated as a Slime season 3 registered a 3.1% rating on Friday night, showing the isekai title maintains an audience despite airing in late-night programming.

Children's programming filled out the lower end of the rankings. Crayon Shin-chan secured 2.6%, while Star Detective Precure! managed 1.9% on Sunday morning. International content also competed for viewers—Curious George and Bluey, both airing on NHK-E, drew 1.7% and 1.5% respectively.

The ratings represent viewership percentages among surveyed households in the Kanto region and don't include recorded playback, meaning the actual audience for these shows may be larger when accounting for time-shifted viewing and streaming platforms. The data reflects traditional television consumption patterns in Japan, where anime continues to occupy a significant portion of broadcast schedules across multiple networks and time slots.

These rankings provide a snapshot of what Japanese audiences were watching during this period, with the enduring popularity of long-running series demonstrating the staying power of established franchises in the competitive anime landscape.