Mika has short, dark purple hair with bangs falling to the right side of her face and wears glasses.
Like her daughter, Mika has plug-like earlobes.
Mika is a talented musician who likes punk rock.
At some point, Kyotoku fell in love with Mika's musical talent, which led to them getting married and have a daughter named Kyoka Jiro.
Mika is first seen alongside Kyotoku when he was confronting Shota Aizawa and All Might over their request to take Kyoka to live in U.A. High School, however Kyoka showed up and revealed that her father had already decided in advance to let her go. When they started bickering, Mika told the both of them to calm down.
Musical Talent: Mika is a skilled musician, although it's currently unknown which musical instrument she is able to play.
Earphone Jack (イヤホンジャック Iyahon Jakku?): Mika's Quirk gives her a pair of headphone jacks hanging from her earlobes. Assuming that her Quirk is the same as her daughters, she can plug the jacks into objects and channel the sound of her heartbeat into them in the form of a super violent vibration. She would also be able to extend her earlobes several meters.
- Kyoka's name is composed by two syllables coming from each of her parents' names. In Mika's case, it's "徳" (Ka).
- The surname, "Jiro", is actually from Mika's side of the family. It is not uncommon for the husband to take his wife's surname in real-life Japan.
- Mika's favorite thing is punk music.
- Mika also shares her birthday with Fourth Kind.
- Mika's English voice actor, Katelyn Barr, also voices Cow Lady and Ryukyu.
|Families and Civilians|
|Asui Family||Beru Asui • Ganma Asui • Tsuyu Asui • Samidare Asui • Satsuki Asui|
|Bakugo Family||Masaru Bakugo • Mitsuki Bakugo • Katsuki Bakugo|
|Iida Family||Tensei Iida • Tenya Iida|
|Jiro Family||Kyotoku Jiro • Mika Jiro • Kyoka Jiro|
|Midoriya Family||Hisashi Midoriya • Inko Midoriya • Izuku Midoriya|
|Shimura Family||Chizuo • Hana Shimura • Kotaro Shimura • Mako • Nana Shimura • Nao Shimura • Tenko Shimura|
|Todoroki Family||Enji Todoroki • Rei Todoroki • Fuyumi Todoroki • Natsuo Todoroki • Shoto Todoroki • Toya Todoroki|
|Tsukauchi Family||Makoto Tsukauchi • Naomasa Tsukauchi|
|Shield Family||David Shield • Melissa Shield|
|Haimawari Family||Koichi Haimawari • Shoko Haimawari|
|Oguro Family||Iwao Oguro • Tamao Oguro|
|Skyline Family||Christopher Skyline • Pamela|
|Civilians||Aorio Kuraishisu • Daikaku Miyagi • Eri • Hime • Ichimoku Samazu • Jube Namimaru • Katsuma Shimano • Komari Ikoma • Kota Izumi • Luminescent Baby • Mahoro Shimano • Miyashita • Public Safety Commission President • Rin Yaritezawa • Saito • Samuel Abraham • Sho • Takuto • Tamashiro • Taneo Tokuda • Teruo Hazukashi • The Mother of Quirks • Tsubasa • Untenmaru Kurumada • Yokumiru Mera|