#Japan #Tokyo #Anime Data Insight Lab #Galactic Express Milky Subway #2025 Summer Anime

Introduction

The summer anime season of 2025 has witnessed an unprecedented scale with 81 new titles airing. Our analysis of viewer attention trends over the weeks has revealed several distinct growth patterns among these shows.

In this article, we utilize Trend Scores (Google search volumes) and Fan Scores (social media activity) to closely examine the attention dynamics of all 81 anime titles from the summer season of 2025. By employing four key metrics—average period, maximum value, growth rate, and intensity index—we delve into the growth trajectories of these works.

Analysis Overview

Analysis Subjects

A total of 81 anime series, including 62 new titles and 19 sequels, were part of this study.

Data Used

• - Trend Score: Google search volume data.
• - Fan Score: Social media activity (X posts).

(Note: Weekly maximum Google search volumes are normalized against the maximum X posts, set to 100 for comparative analysis.)

Analysis Period

We assessed the works based on four key metrics:
1. Average Period: Average weekly attention.
2. Maximum Value: Peak attention in a specific week.
3. Growth Rate: Percentage change from the first week to the last.
4. Intensity Index: Average Fan Score divided by Average Trend Score.

Trend Score Analysis: A Mix of Initial Burst and Late Surges

Top 10 Trend Score Averages:

• - “Tabcopy's Original Sin” scored an average of 84 and hit a peak of 100 in its second week, maintaining high initial attention over time.
• - “Dandadan”, “Kaiju No. 8”, and “Sakamoto Days” saw their peak weeks in the latter part of the season, solidifying their stability over time.
• - Notably, “Galactic Express Milky Subway” didn’t rank in the top 10 for average scores but achieved a 6th position in maximum value, peaking in its final week, showing a late growth pattern.

Fan Score Analysis: Peaks Concentrated in Later Weeks

Top 10 Fan Score Averages:

• - “Tabcopy's Original Sin”, “The Summer When The Light Died”, and “Dandadan” ranked high, indicating continuous fan activity.
• - “Galactic Express Milky Subway”, with an average score of 28 (6th place) but a maximum score of 100 at first, indicates a late but rapid intensification of fan engagement near the season's end.

Growth Rate Analysis: Potential for Dominance Amid Initial Low Performance

Top 10 Growth Rates (Trend and Fan Scores):

• - “Galactic Express Milky Subway” stands out with a staggering Trend Score growth rate of 2000% and a Fan Score growth rate of 3135%, leading in both indicators and reflecting significant growth through the season.

Intensity Index Analysis: Divergence of Recognition and Fan Energy

What is Intensity Index?

Intensity Index = Average Fan Score / Average Trend Score
Higher values signify greater fan engagement relative to general awareness.

Top 10 Intensity Indexes:

• - Many works with low average Trend Scores, such as “New PANTY & STOCKING”, show high fan activity despite lower recognition.

Conclusion: Key Factors for Success

Through our analysis, we have identified three major growth patterns among anime: explosive bursts with maintenance, transition points with concentrated finales, and steady, gradual growth.

• - Explosive Initial Burst (e.g., “The Summer When the Light Died”): High early discussion but gradual decreases after the initial three weeks, with an emphasis on early promotion’s effectiveness.
• - Transition Point and Concentrated Finale (e.g., “Galactic Express Milky Subway”): Low initial interest transformed into rapid growth, notably from mid-season onward, with significant peak attention in the last weeks.
• - Steady Growth (e.g., “I Can’t Possibly Become His Girlfriend!”): Slow build-up with consistent performance, indicating effective word-of-mouth momentum.

The observed growth trends reflect not only viewer habits but also the impact of contemporary viewing practices, characterizing the anime production and distribution strategy moving forward. As we move ahead, such analysis will remain crucial for understanding future anime successes.