Ai and Yu, after reading their parent's research and after their parents' disappearance, they decided to go on search for them. They ride a strange train to the Inner World in search of their parents and meets up with Lisa in the train and together they begin their journey within the Inner World.
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(Source: Anime News Network)

__Hobbies:__ baseball, cooking, golf

Elder brother of [Hideyuki Hori](https://anilist.co/staff/96027)

[Profile (Aoni)](https://www.aoni.co.jp/search/hori-yukitoshi.html)

Knave