She tends to get so carried away with her sexual fantasies about Moroha that Jin has to step in to restrain her.
He was hailed as being the strongest swordsman and guardian of the to remain close to his sister who was the Holy Sword Maiden; it was also revealed that the two of them were lovers.
Moroha was just concentrating on checking the conditions of their legs.
Meanwhile, Shizuno refuses to talk about her past life, causing friction between her and Moroha.