I'm a Kept Man for the Three Most Beautiful Girls in School (Novel)

"Book Adaptation Confirmed! I'm being pampered by the three cutest girls at school!" Kei Kyosaka, a boy from a poor family, worked tirelessly day and night to send his sister to a good university. Because of his busy schedule, he often had to turn down invitations to hang out at school, leading to a solitary daily life. However, a chance encounter led him to get involved with the three girls rumored to be the school's top beauties: Karasuma, Ono, and Daigo. Despite being high school students, these girls had already established a doujin circle. Rumor had it they were making millions. Chikage Karasuma, the voice talent: Mainly works on ASMR, VTuber roles, and voice acting for their own games. Tsukasa Ono, the illustrator: Mainly works on jacket designs, character designs, and directing their own game artwork. Sakurako Daigo, the scriptwriter: Mainly works on ASMR scripts, VTuber scripts, and scenarios for their own games. Kei, now favored by these three girls, is pressured to quit his current part-time job. Instead, they offer him a job where he helps these beautiful girls release their pent-up frustrations from their creative work. With an hourly wage of 5000 yen and the chance to get cozy with these beauties, plus all meal expenses covered, it seems like he's practically living off them. Kei, determined to support his sister and respond to the girls' feelings, devotes himself wholeheartedly to this dream-like job. ****