Episode 17: Magatsuhi's Evil Will
(曲霊の邪念 Magatsuhi no Janen)

Episode 18: An Important Event in Life
(人生の一大事 Jinsei no Ichidaiji)

Episode 19: Kohaku's Shard
(琥珀の欠片 Kohaku no Kakera)

Source: Magazine scan found on 2ch