On 11 January, IRyS announced that she would get her new year costume.
On 13 January, IRyS debuted her new year costume. IRyS uses high twintails decorated with magenta starry ribbons and optionally other flower accessories. IRyS wears a kimono with white and pink sleeves that gradient to purple. The right sleeve has a black hole print representing the end on the universe, while the left sleeve has a supernova representing the beginning of the universe. The is decorated with a classic iris flower and a pair of sparkly dark purple and white wings. The kimono has some patterns including four pointed stars and flowers in different colors. IRyS wears sandals with socks.
On 19 March, IRyS debuted her 3D idol costume during hololive 4th fes. "Our Bright Parade" DAY2.
On 28 May, IRyS debuted her main 3D model during a hologra episode.
On 2 July, she participated in "hololive English 1st Concert Connect the World."
On 10 July, as part of the "hololive Summer 2023" event, IRyS debuted her 3D during her second anniversary celebration stream. These are the same designs that Japanese members debuted the previous year.
On 30 July, as part of the "hololive Summer 2023" event, during a karaoke relay, IRyS debuted her 3D swimsuit. The 2023 swimsuits are inspired in a sailor uniform. Members wear a two layered swimsuit, the first layer is blue from the straps going down diagonally to the center where each member has a mostly blue bow but one of the sides and the brooch are in one color representative of each member. The rest of the top is white. The edge has a semi circular cut. The lower piece of the first layer has two variants, one is a two layered blue skirt decorated with a white belt, a golden chain with some decorations hanging from it and a bow to the left and planks to the right. The second version is mostly the same but they wear blue shorts instead of a mini skirt. The second layer of the outfit is a matching striped bikini in white and another color depending on the member.
On 20 August, IRyS officially debuted her 3D model on her YouTube channel.
On 9 October, IRyS, Ceres Fauna, Ouro Kronii, Nanashi Mumei and Hakos Baelz announced that they would form the new unit "hololive English -Promise-." While not stated in the 3D collab the closure of "Project: HOPE" was announced on hololive's website shortly after.
On 14 October, hololive English's Twitter account announced that IRyS would get her third 2D costume based on her redesign.
On 16 October, IRyS debuted her third 2D costume. IRyS has two hairstyles, in one she has a bob haircut and in the other she has a side ponytail. Both have two different styles for her bangs and can be combined with a black and white beret. IRyS can also use her hairstyle from her new year costume. IRyS has a black choker and a necklace resembling GuyRyS. IRyS wears a white strap dress, with a ruffled collar, decorated with a black ribbon. The edge of the dress has small holes and a triangular cut. She uses synthetic leather boots. IRyS can also use a beige cardigan with a hoodie, baggy sleeves and pins of Bloom & Gloom on her left pocket. She can put on the cardigan's hoodie which has holes for her horns. IRyS can also use black tights and glasses. IRyS can also choose to use her wings and halo.