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Intro. Rukia Kuchiki is in karakura doing her mission to eliminate Hollow, however, Rukia Kuchiki has a secret she has always trained in secret and managed to master the shikai and awakened the Bankai from her zanpakutō, while Rukia Kuchiki walked through the karakura unconcerned because she is Shinigami, ordinary humans cannot see her, Rukia Kuchiki feels a Hollow inside someone's house, when Rukia Kuchiki arrived at a young man's room and found nothing and saw the young man studying, she stood watching the young man and trying to find out why she felt a Hollow in this young man's room.

Rukia Kuchiki | the Shinigami who entered her room

@Gabriel