Itsuki and Mahiru performed their first Love Ritual. A "Star Child" that will be able to cleanse the Impurity was born, as they bonded through physical contact. Later, they were transferred to "Hoshigami Academy," where the "maidens of the 12 constellations," who will perform the Love Rituals with Itsuki, were gathered. Itsuki starts to bond with one of the maidens, Ruka, at the cherry blossom viewing welcome party.
Her personality changes like 
this when you give her a jolt.
.تتغيّر شخصيتها هكذا عندما تضربها فجأةً
Sie verändert ihren Charakter,
wenn sie ’nen Klaps bekommt.
Su personalidad cambia
si la sacudes así.
Su personalidad cambia
si le metes un capón.
Elle change de personnalité
quand on la frappe.
Cambia personalità
quando le si dà una bottarella.
Como podem ver, a personalidade dela
muda com um sobressalto.
Если стукнуть, и характер изменится.