Tomoko Horinouchi

Tomoko Horinouchi (堀之内 友子 Horinouchi Tomoko) is the announcer of the Kagoshima Prefecture qualification tournament who is partnered with professional mahjong player Shuuichirou Oonuma.

Appearance
Tomoko has light brown hair that is tied into a bun with bangs hanging on the right side and green eyes.

She wears a business suit when working

Combined Training Camp Arc
Tomoko points out that Eisui Girls' High School vice captain Hatsumi Usuzumi almost always wins while sitting north. When Shuuichirou Oonuma tried to explain the ability, she didn't understand what he was talking about.

Etymology

 * The name Tomoko means "friend" (友) (tomo) and "child" (子) (ko).
 * Tomoko's surname Horinouchi means "moat" (堀) (hori), "this" (之) (no) and "inside" (内) (uchi).