Sekai-ichi Hatsukoi Wiki
Sekai-ichi Hatsukoi Wiki

Yoriko Yoshino (吉野頼子, Yoshino Yoriko) is a supporting character in the Sekai-Ichi Hatsukoi series. She is the mother of Chiaki Yoshino and Chinatsu Yoshino.


Yoriko has short black hair that is swept to the left and brown eyes.


Yoriko is a concerned woman as she calls Chiaki Yoshino and tries to get him to eat more vegetables. She can be both pleasant and fierce with her children, welcoming Chiaki home but slipping immediately into intimidation to demand he not run off too quickly.

She is very flattering to Yoshiyuki Hatori, calling him handsome and congratulating him on his position as second-editor-in-chief. She is more critical of her son's accomplishments.

Although Yoriko is eager for both her children and Hatori get married and have families, she seems oblivious to their romantic interests, seemingly completely unaware that Chiaki and Hatori are in a relationship together and that Chinatsu Yoshino has a crush on Hatori.


Yoriko when she first opens the door to see her son.

A year after Chiaki Yoshino and Yoshiyuki Hatori begin dating, Yoriko calls her son and she gives him some grief about eating vegetables and insists that he comes over once in a while to visit. After getting off the phone, Chiaki talks to Hatori, and they decide to visit Chiaki's family together since Hatori is also going to his parents' to feed their fish while they're away, so Chiaki can stay with Hatori at his parents' place.

They visit Yoriko and Chinatsu Yoshino that day, and she comments that Hatori has become even more handsome since she's last seen him. She offers them watermelon and the boys try to make their escape but she firmly tells them not to run away. They accept the watermelon and talk.

Yoriko concerned that Chiaki isn't married yet.

Yoriko is flattering and encouraging to Hatori's work, but critical of Chiaki's. She's concerned that he's wasting his time and says he should stop and "go find a nice girl." She also asks Hatori about his relationships, but like Chiaki, he claims he's too busy. Yoriko suggests he date Chinatsu, which startles both her children and Chinatsu accuses her of making this awkward for Hatori. She then asks Chinatsu if she's seeing anyone, and Chinatsu tells her it's not her business. Hatori politely says that Chinatsu is lovely and deserves someone better than him, which causes Chinatsu to quickly leave the room, upset. Chiaki is also upset and borrows the keys to Hatori's parents' place and leaves. Yoriko calls after him to take the vegetables, but he doesn't listen, leaving only Hatori and Yoriko in the room.

Hatori later takes the vegetables and leaves as well.


  • The name Yoriko means "rely on, be dependent upon" (頼) (yori) and "child" (子) (ko).
  • Yoriko's surname Yoshino means "lucky, good" (吉) (yoshi) and "field, wilderness" (野) (no).


Sekai-ichi Hatsukoi characters
Character icon Ritsu.png
Character icon Takano.png
Character icon Chiaki.png
Character icon Hatori.png
Character icon Kisa.png
Character icon Yukina.png
Character icon Yokozawa.png
Character icon Kirishima.png
Masamune Takano Chiaki Yoshino Yoshiyuki Hatori Shouta
Takafumi Yokozawa Zen

Marukawa employees Kanade MinoRyuichiro IsakaKaoru AsahinaSasakiKazuma HenmiYasuda GouSanae HoshinoHasegawaTinkle
Mangaka Yuu YanaseYukina MutouNanako SaitouErika IchinoseIori SatouKaitou
Friends and family SaekiAn KohinataChinatsu YoshinoYoriko YoshinoRio KojimaNao KiyomiyaHiyori KirishimaRitsu's motherSorata
Other Arata HaitaniKeiki TezukaKensuke SaigusaTakuya KusagawaRyouichi SumiAkihiko UsamiIokawaRyouko OosakiKayamaIchimuraKisa's one-night-stand