Rui Kurihara Donates 31cm of Hair, Trades Long Locks for a Shoulder-Length Bob

Background and Key Points

Hair donation in Japan runs through organizations like JHD&C (Japan Hair Donation & Charity), which collects donated hair to make free medical wigs for children and others who have lost hair to conditions like alopecia areata or cancer treatment. The programs typically require a minimum cut length — for JHD&C that’s 31cm — which is why donors often let their hair grow out for a year or more before finally cutting it all off at once, as Kurihara appears to have done.

The thread’s actual disagreement was over whether hair donation creates extra burden for the hairstylist doing the cut. One camp assumed it must be more work; others pushed back, noting that stylists tend to enjoy participating and that, increasingly, the customer mails the cut hair to the donation organization themselves rather than the salon handling that step — meaning the stylist’s job is just the cut itself.

What outside readers are likely to miss is the coincidence baked into the “31cm” detail: some posters briefly assumed it referenced Kurihara’s age (he’s also 31), but it’s simply JHD&C’s minimum accepted length, unrelated to him personally. Readers are also likely to gloss over a separate thread of confusion between Kurihara and another Japan-based model with a similar first name (Rui Yoshida), who is unrelated but has publicly discussed having ADHD — a mix-up multiple posters admitted to making themselves, and distinct from the ADHD diagnosis mentioned about Kurihara earlier in the thread. Non-Japanese readers may also miss the pun in posters ribbing Kurihara’s phrasing as overly humble/deferential, a register non-native speakers wouldn’t catch as unusual.