Rena wrote Kaede's name on the Friendship Ending Staircase. Kaede apologizes to Rena, but she is kidnapped by the Chain Monsters, confirming that the rumor about the staircase was true. In order to find Kaede and bring her back, Momoko and her companions come up with a strategy to lure out the Chain Monsters.
Yachiyo has joined the group after being asked by Momoko to help them. Yachiyo claims that Iroha will hinder the operation and refuses to let her participate in the battle with the Chain Monsters.
Rena, whenever you feel sad,
you always transform into Momoko.
Cuando te deprimes,
siempre te transformas en Momoko.
Cuando te deprimes,
siempre te transformas en Momoko.
Tu sais, Rena,
Rena, quando sei triste 
ti trasformi sempre in Momoko.
Rena, você sempre se transforma
na Momoko quando fica triste.