BUR #43298 has been approved by @nonamethanks.
create alias uruka_(kenzen_kanojo_uruka-chan) -> kamioosaki_uruka
create alias uruka's_sister_(kenzen_kanojo_uruka-chan) -> kamioosaki_uruka's_sister
According to https://shamakho.fanbox.cc/posts/8802374, paid reward though it may be, her full name is "上大崎うるか" -> "Kamioosaki Uruka". It is romanized with a macron in said reward, so I opted to romanize as usual.