Sasaki Takeo ( : 佐々木 武雄 Sasaki Takeo) is a pilot and Siesta's great-grandfather.
Sasaki came to Tarbes during World War II on a fighter aircraft, which the local inhabitants called the Dragon's Raiment. After failing to fly the aircraft, he finally settled down in Tarbes and paid a noble to preserve the aircraft. He left a will leaving whoever that could read his tombstone with the Zero fighter. He set up a family and died in Tarbes. Siesta's father wished for Hiraga Saito to settle in Tarbes because he was from the same country as Sasaki.