Airship of Death - S1.E14

After Ken tells Chiko that Twenty Faces likely lived from falling from the airship, the two move to pilot the airship. People on the airship who had been poisoned wake up as they had not been poisoned. In the meantime, Tome manages to get parental rights over Chiko and attain a mansion for them to live in. Back on the airship, bombs planted on the airship force Ken and Chiko to land the airship into the sea. Chiko, Ken, and everyone on the airship are soon rescued. Akechi, who had been following the airship, reveals what Twenty Faces is trying to find, the fourth state of water. Chiko and Tome are reunited at a hospital.