It¡¯s hard to walk around Japan without coming across the cuddly characters of ¡°Chiikawa,¡± the web manga by . They dangle from handbags, fill arcade claw machines and smile from Uniqlo T-shirts, making them among the most recognizable kawaii mascots of the current Reiwa Era.

It¡¯s not surprising, then, that the franchise¡¯s first feature-length film, ¡°,¡± has been a cinematic smash success since arriving in theaters on July 24. It ¡ª the seventh-biggest first day in Japanese box-office history ¡ª before reaching ?2.24 billion by . ¡°Mermaid Island¡± is already shaping up to be one of the summer¡¯s biggest hits.

What many didn¡¯t expect from an animated summer-vacation movie was something closer to Dostoevsky than Hello Kitty, with stunned social media users describing it as ¡°.¡± They¡¯re not entirely wrong.