The beloved children’s picture book series “Nezumi-kun no Chokki” has inspired a brand-new line of apparel items, now on sale at the Kobe Lettuce official online store as of August 11, 2026.

First published in 1974 by Poplar Publishing, “Nezumi-kun no Chokki” was created by author Nakae Yoshiwo and illustrator Ueno Noriko. The long-running series, centered on a tiny mouse in a red vest, has won over readers for decades with its simple, heartwarming stories and charming illustrations.
Its popularity has only grown in recent years: a TV anime adaptation premiered on NHK E-Tele on April 4, 2026, and the decision to have Tsuda Kenjiro and Noto Mamiko voice every character has been a major talking point. A second season has also been confirmed for October.

This collaboration was born from a wish to let fans of all ages enjoy the nostalgic charm of the series through fashion. Kobe Lettuce’s practical, everyday-ready design approach meets the gentle, endearing world of “Nezumi-kun no Chokki” in a lineup that both adults and children can appreciate.
The adult short-sleeve T-shirts feature embroidered renderings of the beloved mouse characters, offering a subtle touch that fits naturally into daily outfits while still carrying that hint of childhood nostalgia. Pair them with the matching KIDS embroidery T-shirts for a parent-and-child link coordinate.
For fans who want to fully immerse themselves in the series’ world, all-over printed roomwear sets are also part of the lineup. Designed to evoke the delight of flipping open a picture book, these two-piece sets bring the playful spirit of the series into relaxing moments at home.
Completing the collection are one-point embroidered socks, a subtle fashion accent that pairs easily with everyday styling. Each pair offers a gentle reminder of favorite storybook days, making them a great pick for adult fans as well.
Whether you grew up with the series or are discovering it anew, these exclusive collaboration pieces offer a special way to carry the warm world of “Nezumi-kun no Chokki” into everyday life.
Product Information
■ “Nezumi-kun no Chokki” × Kobe Lettuce
Release date: August 11, 2026
Available at: Kobe Lettuce official online store
*Prices reflect those at the time of publication and may vary depending on timing.














