Just when things are going well for Haruna, in walks transfer student Leona Matsuzaka. Beautiful Leona's got only one thing in mind--to destroy Haruna's happiness! Who is this vengeful girl and why does she want to hurt Haruna so badly? -- VIZ Media

After blindly following the advice of fashion magazines and the like, Haruna fails to win the eye of any guy. Convinced that a coach is needed (just like when she trained for softball), she recruits cute upperclassman Yoh Komiyama to instruct her on how to make herself more appealing. Yoh agrees, with one catch: Haruna had better not fall for him! -- VIZ Media

The school-wide physical exam has thrown the members of the Host Club for a loop. How can the doctor not discover that Haruhi is a girl?! And once the female customers learn the truth, Haruhi can kiss her job goodbye. But then life at the club will be unbearably boring if she leaves! So the guys wrack their brains for a solution.... -- VIZ Media

Friendship and love are put to the test when Asaoka reveals to Yoh that he likes Haruna. To settle things once and for all, Yoh and Asaoka strike a deal--whoever loses the school sports meet will give up his feelings for her! Who will win the meet and Haruna's heart? -- VIZ Media

Haruna begins to develop feelings for Fumiya, Yoh's friend. Yoh talks her through her first-date jitters, but is Fumiya the right guy for Haruna? Especially when they walk in on Fumiya and Yoh's sister Asami...kissing?! -- VIZ Media

Seventeen-year-old Chiyuki Matsuoka was born with heart problems, and her doctors say she won’t live to see the next snow. Toya is an 18-year-old vampire who hates blood and refuses to make the traditional partnership with a human, whose life-giving blood would keep them both alive for a thousand years. Toya still can’t shake his blood aversion, even though Chiyuki would happily share hers with him, and the malnutrition is starting to take its toll. Chiyuki tries to supplement his diet with solid food, but that’s just barely enough to keep him alive. Can Chiyuki fi nd a way to support her vampire when he refuses the help she knows he needs?

This two-volme set CCIS 1957-1958 is part of the refereed proceedings of the 25th International Conference on Human-Computer Interaction, HCII 2023, which was held in Copenhagen, Denmark, in July 2023. A total of 5583 individuals from academia, research institutes, industry, and governmental agencies from 88 countries submitted contributions, and 1276 papers and 275 posters were included in the proceedings that were published just before the start of the conference. Additionally, 296 papers and 181 posters are included in the volumes of the proceedings published after the conference, as “Late Breaking Work” (papers and posters). The contributions thoroughly cover the entire field of human-computer interaction, addressing major advances in knowledge and effective use of computers in a variety of application areas.