Grape-kun's devotion to the cutout earned him fame and a global fan base on the Internet.[4][7][8] Hululu's voice actress, Ikuko Chikuta, visited Grape-kun as part of an educational event on penguins.[8] A festival honoring Grape-kun was planned, but his health began to decline in October. The zoo announced his death on October 12.[9] Zoo personnel created a small shrine in his honor, and several guests visited the penguin enclosure with flowers.[9][2] Social media users paid tribute through the hashtag #grapekun, and many posted illustrations of Grape-kun and Hululu.[2] In January 2018, Tobu Zoo placed a new cutout in the penguin enclosure, featuring Hululu and an illustration of Grape-kun standing side-by-side.[10]
