Sasagawa Shinya is the 108th Prime Minister of Japan in the Hagure Yuusha no Estetica series.
Sasagawa has had three children, all of them were summoned to alternate worlds. His eldest son did not come back, his second son did come back, but suffered emotional and mental trauma as a result, before ultimately committing suicide. His youngest son successfully returned to Earth, but cut all ties with his father because he favored politics over his second son, therefore being indirectly responsible for his suicide by being negligent. Sasagawa and his wife's resentment eventually lead to their mutual divorce.
As a result, he profoundly hates alternate worlds and wish he could destroy JPN BABEL.