|Relationship Status||In a relationship|
Haruka Shiraishi is a main character the series Chu-Bra!!. A shy girl and Yako's best friend. Helping to raise her three younger brothers, Nayu and Yako are often in awe of her motherly nature.
- If Nayu touches her breasts, she became shy, like when Nayu catches up to them the next day, she grabs Haruka's breasts from out of the blue, prompting both Yako and Haruka to keep their distance from her.
- She appears to have some romantic feelings for Nayu, leading some to suspect her of being a lesbian.
- At the summer festival, When Haruka accidentally gets a goldfish down her cleavage, she feels the tightness again when Nayu adjusts her bra. Nayu recognizes from her underwear that Haruka seems to be in love with someone, though she doesn't get round to saying who.