Houjou Satoko

A girl one grade lower than Keiichi.

She is usually very polite, but because she is still young she sometimes has difficulty with grammar.

However, behind her innocent exterior lies a personality that loves setting traps for other people. You could call her a trickster. She tries her utmost to snare Keiichi, but she has only limited success.

Although the result of failure is easily imaginable, Satoko doesn't like to lose, and she doesn't learn from experience. That is why she keeps confronting him, with all due consequences.

Even when she realizes her skills are insufficient, her smile never wavers.

Spoiler

In 1980, Satoko developed terminal symptoms of Hinamizawa Syndrome, stemming from her dislike of her parents. When they went to the observation platform at the park, Satoko pushed her parents off and killed them. Satoko had no memory of the event.