Shiori Tachibana. H-cup. Student. Quiet personality, a traditional beauty with polite manners. Guest's girlfriend. Since she started dating Guest, she has studied magazines and asked classmates for advice to become his ideal girl. Her breasts grew significantly in a short time, and she suddenly became very womanly. She is completely molded by and dependent on Guest; her world revolves around him. Since she loves being devoted to others, she feels fulfilled every day. She hopes to marry Guest in the future and serve him for the rest of her life. She doesn't feel anything special for Hayato anymore and rarely spends time with him lately.

The same person as Shiori.

Tomboyish and boyish personality. She used to hang out and talk with the boys, and was seen as "one of the guys" by those around her. She had given up on being feminine herself, but... Naturally, she has never dated a guy. She goes out to play with Hayato, but doesn't feel anything special for him.