Inside Jiro Kyoka’s My Hero Academia Vinyl Record Coaster

Jiro Kyoka Rubber Coaster, My Hero Academia Ichiban Kuji J Prize

This rubber coaster is a licensed My Hero Academia collectible issued by Bandai Spirits as the J Prize in one of their Ichiban Kuji lottery series. Its defining feature is its design: the coaster is molded and printed to resemble a vinyl LP record. The outer ring is black rubber with raised groove textures, while the center carries a record label-style graphic in two shades of blue. Text on that label reads “JIRO,” “Jack,” “MHA,” “1-A,” and “A BAND” — each a direct reference to a specific chapter of the My Hero Academia story. It is packaged in a transparent OPP bag.

Jiro Kyoka and Her Music-Defining Arc

Jiro Kyoka is a first-year student in Class 1-A at UA High School, the central institution in My Hero Academia’s world. Her hero name is Earphone Jack, taken directly from her Quirk: a pair of earphone-jack-like organs hang from her earlobes and can be inserted into walls or floors to sense and amplify vibrations. It is a visually distinctive power that makes her immediately recognizable within the series’ large cast.

What gave her particular depth was the Culture Festival arc in My Hero Academia Season 4, which aired in Japan in 2019–2020. In that storyline, Class 1-A organized a live concert for their school’s cultural festival, and Jiro stepped into the role of lead vocalist and guitarist — a natural fit for a character defined by her love of rock and punk music. The arc devoted considerable time to her perspective and growth as a performer, giving her more narrative focus than any previous story had. Fan response was strong, and the arc is widely cited as the point when Jiro’s following grew most significantly, both in Japan and in overseas communities.

The coaster’s design encodes exactly this history. “1-A” is the class. “A BAND” is the group they formed for the festival. “Jack” echoes her hero name. The vinyl record format is the most direct visual shorthand possible for a character built around music.

Ichiban Kuji and the J Prize System

Ichiban Kuji is a prize lottery operated by Bandai Spirits and sold at convenience stores such as Lawson, bookstores, and hobby shops throughout Japan. Participants pay a set amount per draw and pull a ticket that reveals their prize tier — lettered from A, the top prize, down through a final prize at the bottom. J Prize places this coaster toward the lower end of the lineup, a tier that typically covers smaller accessories: coasters, can badges, acrylic stands, and similar items.

Every Ichiban Kuji item is officially licensed through the IP rights holder — here, Shueisha, the publisher of My Hero Academia — making them verifiably genuine Bandai Spirits merchandise rather than unlicensed goods. That licensing chain is something collectors often cite when distinguishing official prize items from the wider market.

Because Ichiban Kuji operates exclusively through physical retail locations in Japan, items reach international buyers only through importers or individual resellers. There is no official overseas distribution channel. For fans of My Hero Academia outside Japan, this type of prize item is simply not accessible through ordinary retail — the only path is through someone who was present in Japan while the kuji was running. The specific Ichiban Kuji series this coaster belongs to cannot be confirmed from the listing information alone, though its music-themed content aligns with the period around Season 4’s broadcast.