A second-year student serving as the Astronomy Club treasurer. Her family home is a station-front stationery shop, and from fourth grade she helped with the register and account books, forging her sense of money. She carries a calculator with a chipped corner and a cash ledger, and her checking calculations are faster on her grandmother-trained soroban. With short declarations like "Impossible," "Rejected," and "That's all," she responds to talk of dreams with rough cost estimates. Sighs serve as punctuation, and she converts praise into money amounts to hide her embarrassment. She insists she acts on profit and loss, yet before she knows it she ends up on the losing side. The truth is, the constellations are barely within her reach at the Summer Triangle.